third_party/WebKit/Source/core/frame/UseCounter.cpp

   1 /*
   2  * Copyright (C) 2012 Google, Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "core/frame/UseCounter.h"
  28
  29 #include "core/css/CSSStyleSheet.h"
  30 #include "core/css/StyleSheetContents.h"
  31 #include "core/dom/Document.h"
  32 #include "core/dom/ExecutionContext.h"
  33 #include "core/frame/FrameConsole.h"
  34 #include "core/frame/FrameHost.h"
  35 #include "core/frame/LocalFrame.h"
  36 #include "core/inspector/ConsoleMessage.h"
  37 #include "core/workers/WorkerGlobalScope.h"
  38 #include "public/platform/Platform.h"
  39
  40 namespace blink {
  41
  42 static int totalPagesMeasuredCSSSampleId() { return 1; }
  43
  44 int UseCounter::m_muteCount = 0;
  45
  46 // FIXME : This mapping should be autogenerated. This function should
  47 //         be moved to a separate file and a script run at build time
  48 //         to detect new values in CSSPropertyID and add them to the
  49 //         end of this function. This file would be checked in.
  50 //         https://code.google.com/p/chromium/issues/detail?id=234940
  51 int UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(int id)
  52 {
  53     CSSPropertyID cssPropertyID = static_cast<CSSPropertyID>(id);
  54
  55     switch (cssPropertyID) {
  56     // Begin at 2, because 1 is reserved for totalPagesMeasuredCSSSampleId.
  57     case CSSPropertyColor: return 2;
  58     case CSSPropertyDirection: return 3;
  59     case CSSPropertyDisplay: return 4;
  60     case CSSPropertyFont: return 5;
  61     case CSSPropertyFontFamily: return 6;
  62     case CSSPropertyFontSize: return 7;
  63     case CSSPropertyFontStyle: return 8;
  64     case CSSPropertyFontVariant: return 9;
  65     case CSSPropertyFontWeight: return 10;
  66     case CSSPropertyTextRendering: return 11;
  67     case CSSPropertyWebkitFontFeatureSettings: return 12;
  68     case CSSPropertyFontKerning: return 13;
  69     case CSSPropertyWebkitFontSmoothing: return 14;
  70     case CSSPropertyFontVariantLigatures: return 15;
  71     case CSSPropertyWebkitLocale: return 16;
  72     case CSSPropertyWebkitTextOrientation: return 17;
  73     case CSSPropertyWebkitWritingMode: return 18;
  74     case CSSPropertyZoom: return 19;
  75     case CSSPropertyLineHeight: return 20;
  76     case CSSPropertyBackground: return 21;
  77     case CSSPropertyBackgroundAttachment: return 22;
  78     case CSSPropertyBackgroundClip: return 23;
  79     case CSSPropertyBackgroundColor: return 24;
  80     case CSSPropertyBackgroundImage: return 25;
  81     case CSSPropertyBackgroundOrigin: return 26;
  82     case CSSPropertyBackgroundPosition: return 27;
  83     case CSSPropertyBackgroundPositionX: return 28;
  84     case CSSPropertyBackgroundPositionY: return 29;
  85     case CSSPropertyBackgroundRepeat: return 30;
  86     case CSSPropertyBackgroundRepeatX: return 31;
  87     case CSSPropertyBackgroundRepeatY: return 32;
  88     case CSSPropertyBackgroundSize: return 33;
  89     case CSSPropertyBorder: return 34;
  90     case CSSPropertyBorderBottom: return 35;
  91     case CSSPropertyBorderBottomColor: return 36;
  92     case CSSPropertyBorderBottomLeftRadius: return 37;
  93     case CSSPropertyBorderBottomRightRadius: return 38;
  94     case CSSPropertyBorderBottomStyle: return 39;
  95     case CSSPropertyBorderBottomWidth: return 40;
  96     case CSSPropertyBorderCollapse: return 41;
  97     case CSSPropertyBorderColor: return 42;
  98     case CSSPropertyBorderImage: return 43;
  99     case CSSPropertyBorderImageOutset: return 44;
 100     case CSSPropertyBorderImageRepeat: return 45;
 101     case CSSPropertyBorderImageSlice: return 46;
 102     case CSSPropertyBorderImageSource: return 47;
 103     case CSSPropertyBorderImageWidth: return 48;
 104     case CSSPropertyBorderLeft: return 49;
 105     case CSSPropertyBorderLeftColor: return 50;
 106     case CSSPropertyBorderLeftStyle: return 51;
 107     case CSSPropertyBorderLeftWidth: return 52;
 108     case CSSPropertyBorderRadius: return 53;
 109     case CSSPropertyBorderRight: return 54;
 110     case CSSPropertyBorderRightColor: return 55;
 111     case CSSPropertyBorderRightStyle: return 56;
 112     case CSSPropertyBorderRightWidth: return 57;
 113     case CSSPropertyBorderSpacing: return 58;
 114     case CSSPropertyBorderStyle: return 59;
 115     case CSSPropertyBorderTop: return 60;
 116     case CSSPropertyBorderTopColor: return 61;
 117     case CSSPropertyBorderTopLeftRadius: return 62;
 118     case CSSPropertyBorderTopRightRadius: return 63;
 119     case CSSPropertyBorderTopStyle: return 64;
 120     case CSSPropertyBorderTopWidth: return 65;
 121     case CSSPropertyBorderWidth: return 66;
 122     case CSSPropertyBottom: return 67;
 123     case CSSPropertyBoxShadow: return 68;
 124     case CSSPropertyBoxSizing: return 69;
 125     case CSSPropertyCaptionSide: return 70;
 126     case CSSPropertyClear: return 71;
 127     case CSSPropertyClip: return 72;
 128     case CSSPropertyWebkitClipPath: return 73;
 129     case CSSPropertyContent: return 74;
 130     case CSSPropertyCounterIncrement: return 75;
 131     case CSSPropertyCounterReset: return 76;
 132     case CSSPropertyCursor: return 77;
 133     case CSSPropertyEmptyCells: return 78;
 134     case CSSPropertyFloat: return 79;
 135     case CSSPropertyFontStretch: return 80;
 136     case CSSPropertyHeight: return 81;
 137     case CSSPropertyImageRendering: return 82;
 138     case CSSPropertyLeft: return 83;
 139     case CSSPropertyLetterSpacing: return 84;
 140     case CSSPropertyListStyle: return 85;
 141     case CSSPropertyListStyleImage: return 86;
 142     case CSSPropertyListStylePosition: return 87;
 143     case CSSPropertyListStyleType: return 88;
 144     case CSSPropertyMargin: return 89;
 145     case CSSPropertyMarginBottom: return 90;
 146     case CSSPropertyMarginLeft: return 91;
 147     case CSSPropertyMarginRight: return 92;
 148     case CSSPropertyMarginTop: return 93;
 149     case CSSPropertyMaxHeight: return 94;
 150     case CSSPropertyMaxWidth: return 95;
 151     case CSSPropertyMinHeight: return 96;
 152     case CSSPropertyMinWidth: return 97;
 153     case CSSPropertyOpacity: return 98;
 154     case CSSPropertyOrphans: return 99;
 155     case CSSPropertyOutline: return 100;
 156     case CSSPropertyOutlineColor: return 101;
 157     case CSSPropertyOutlineOffset: return 102;
 158     case CSSPropertyOutlineStyle: return 103;
 159     case CSSPropertyOutlineWidth: return 104;
 160     case CSSPropertyOverflow: return 105;
 161     case CSSPropertyOverflowWrap: return 106;
 162     case CSSPropertyOverflowX: return 107;
 163     case CSSPropertyOverflowY: return 108;
 164     case CSSPropertyPadding: return 109;
 165     case CSSPropertyPaddingBottom: return 110;
 166     case CSSPropertyPaddingLeft: return 111;
 167     case CSSPropertyPaddingRight: return 112;
 168     case CSSPropertyPaddingTop: return 113;
 169     case CSSPropertyPage: return 114;
 170     case CSSPropertyPageBreakAfter: return 115;
 171     case CSSPropertyPageBreakBefore: return 116;
 172     case CSSPropertyPageBreakInside: return 117;
 173     case CSSPropertyPointerEvents: return 118;
 174     case CSSPropertyPosition: return 119;
 175     case CSSPropertyQuotes: return 120;
 176     case CSSPropertyResize: return 121;
 177     case CSSPropertyRight: return 122;
 178     case CSSPropertySize: return 123;
 179     case CSSPropertySrc: return 124;
 180     case CSSPropertySpeak: return 125;
 181     case CSSPropertyTableLayout: return 126;
 182     case CSSPropertyTabSize: return 127;
 183     case CSSPropertyTextAlign: return 128;
 184     case CSSPropertyTextDecoration: return 129;
 185     case CSSPropertyTextIndent: return 130;
 186     /* Removed CSSPropertyTextLineThrough* - 131-135 */
 187     case CSSPropertyTextOverflow: return 136;
 188     /* Removed CSSPropertyTextOverline* - 137-141 */
 189     case CSSPropertyTextShadow: return 142;
 190     case CSSPropertyTextTransform: return 143;
 191     /* Removed CSSPropertyTextUnderline* - 144-148 */
 192     case CSSPropertyTop: return 149;
 193     case CSSPropertyTransition: return 150;
 194     case CSSPropertyTransitionDelay: return 151;
 195     case CSSPropertyTransitionDuration: return 152;
 196     case CSSPropertyTransitionProperty: return 153;
 197     case CSSPropertyTransitionTimingFunction: return 154;
 198     case CSSPropertyUnicodeBidi: return 155;
 199     case CSSPropertyUnicodeRange: return 156;
 200     case CSSPropertyVerticalAlign: return 157;
 201     case CSSPropertyVisibility: return 158;
 202     case CSSPropertyWhiteSpace: return 159;
 203     case CSSPropertyWidows: return 160;
 204     case CSSPropertyWidth: return 161;
 205     case CSSPropertyWordBreak: return 162;
 206     case CSSPropertyWordSpacing: return 163;
 207     case CSSPropertyWordWrap: return 164;
 208     case CSSPropertyZIndex: return 165;
 209     case CSSPropertyAliasWebkitAnimation: return 166;
 210     case CSSPropertyAliasWebkitAnimationDelay: return 167;
 211     case CSSPropertyAliasWebkitAnimationDirection: return 168;
 212     case CSSPropertyAliasWebkitAnimationDuration: return 169;
 213     case CSSPropertyAliasWebkitAnimationFillMode: return 170;
 214     case CSSPropertyAliasWebkitAnimationIterationCount: return 171;
 215     case CSSPropertyAliasWebkitAnimationName: return 172;
 216     case CSSPropertyAliasWebkitAnimationPlayState: return 173;
 217     case CSSPropertyAliasWebkitAnimationTimingFunction: return 174;
 218     case CSSPropertyWebkitAppearance: return 175;
 219     // CSSPropertyWebkitAspectRatio was 176
 220     case CSSPropertyAliasWebkitBackfaceVisibility: return 177;
 221     case CSSPropertyWebkitBackgroundClip: return 178;
 222     case CSSPropertyWebkitBackgroundComposite: return 179;
 223     case CSSPropertyWebkitBackgroundOrigin: return 180;
 224     case CSSPropertyAliasWebkitBackgroundSize: return 181;
 225     case CSSPropertyWebkitBorderAfter: return 182;
 226     case CSSPropertyWebkitBorderAfterColor: return 183;
 227     case CSSPropertyWebkitBorderAfterStyle: return 184;
 228     case CSSPropertyWebkitBorderAfterWidth: return 185;
 229     case CSSPropertyWebkitBorderBefore: return 186;
 230     case CSSPropertyWebkitBorderBeforeColor: return 187;
 231     case CSSPropertyWebkitBorderBeforeStyle: return 188;
 232     case CSSPropertyWebkitBorderBeforeWidth: return 189;
 233     case CSSPropertyWebkitBorderEnd: return 190;
 234     case CSSPropertyWebkitBorderEndColor: return 191;
 235     case CSSPropertyWebkitBorderEndStyle: return 192;
 236     case CSSPropertyWebkitBorderEndWidth: return 193;
 237     // CSSPropertyWebkitBorderFit was 194
 238     case CSSPropertyWebkitBorderHorizontalSpacing: return 195;
 239     case CSSPropertyWebkitBorderImage: return 196;
 240     case CSSPropertyAliasWebkitBorderRadius: return 197;
 241     case CSSPropertyWebkitBorderStart: return 198;
 242     case CSSPropertyWebkitBorderStartColor: return 199;
 243     case CSSPropertyWebkitBorderStartStyle: return 200;
 244     case CSSPropertyWebkitBorderStartWidth: return 201;
 245     case CSSPropertyWebkitBorderVerticalSpacing: return 202;
 246     case CSSPropertyWebkitBoxAlign: return 203;
 247     case CSSPropertyWebkitBoxDirection: return 204;
 248     case CSSPropertyWebkitBoxFlex: return 205;
 249     case CSSPropertyWebkitBoxFlexGroup: return 206;
 250     case CSSPropertyWebkitBoxLines: return 207;
 251     case CSSPropertyWebkitBoxOrdinalGroup: return 208;
 252     case CSSPropertyWebkitBoxOrient: return 209;
 253     case CSSPropertyWebkitBoxPack: return 210;
 254     case CSSPropertyWebkitBoxReflect: return 211;
 255     case CSSPropertyAliasWebkitBoxShadow: return 212;
 256     // CSSPropertyWebkitColumnAxis was 214
 257     case CSSPropertyWebkitColumnBreakAfter: return 215;
 258     case CSSPropertyWebkitColumnBreakBefore: return 216;
 259     case CSSPropertyWebkitColumnBreakInside: return 217;
 260     case CSSPropertyWebkitColumnCount: return 218;
 261     case CSSPropertyWebkitColumnGap: return 219;
 262     // CSSPropertyWebkitColumnProgression was 220
 263     case CSSPropertyWebkitColumnRule: return 221;
 264     case CSSPropertyWebkitColumnRuleColor: return 222;
 265     case CSSPropertyWebkitColumnRuleStyle: return 223;
 266     case CSSPropertyWebkitColumnRuleWidth: return 224;
 267     case CSSPropertyWebkitColumnSpan: return 225;
 268     case CSSPropertyWebkitColumnWidth: return 226;
 269     case CSSPropertyWebkitColumns: return 227;
 270     // 228 was CSSPropertyWebkitBoxDecorationBreak (duplicated due to #ifdef).
 271     // 229 was CSSPropertyWebkitFilter (duplicated due to #ifdef).
 272     case CSSPropertyAlignContent: return 230;
 273     case CSSPropertyAlignItems: return 231;
 274     case CSSPropertyAlignSelf: return 232;
 275     case CSSPropertyFlex: return 233;
 276     case CSSPropertyFlexBasis: return 234;
 277     case CSSPropertyFlexDirection: return 235;
 278     case CSSPropertyFlexFlow: return 236;
 279     case CSSPropertyFlexGrow: return 237;
 280     case CSSPropertyFlexShrink: return 238;
 281     case CSSPropertyFlexWrap: return 239;
 282     case CSSPropertyJustifyContent: return 240;
 283     case CSSPropertyWebkitFontSizeDelta: return 241;
 284     case CSSPropertyGridTemplateColumns: return 242;
 285     case CSSPropertyGridTemplateRows: return 243;
 286     case CSSPropertyGridColumnStart: return 244;
 287     case CSSPropertyGridColumnEnd: return 245;
 288     case CSSPropertyGridRowStart: return 246;
 289     case CSSPropertyGridRowEnd: return 247;
 290     case CSSPropertyGridColumn: return 248;
 291     case CSSPropertyGridRow: return 249;
 292     case CSSPropertyGridAutoFlow: return 250;
 293     case CSSPropertyWebkitHighlight: return 251;
 294     case CSSPropertyWebkitHyphenateCharacter: return 252;
 295     // case CSSPropertyWebkitLineBoxContain: return 257;
 296     // case CSSPropertyWebkitLineAlign: return 258;
 297     case CSSPropertyWebkitLineBreak: return 259;
 298     case CSSPropertyWebkitLineClamp: return 260;
 299     // case CSSPropertyWebkitLineGrid: return 261;
 300     // case CSSPropertyWebkitLineSnap: return 262;
 301     case CSSPropertyWebkitLogicalWidth: return 263;
 302     case CSSPropertyWebkitLogicalHeight: return 264;
 303     case CSSPropertyWebkitMarginAfterCollapse: return 265;
 304     case CSSPropertyWebkitMarginBeforeCollapse: return 266;
 305     case CSSPropertyWebkitMarginBottomCollapse: return 267;
 306     case CSSPropertyWebkitMarginTopCollapse: return 268;
 307     case CSSPropertyWebkitMarginCollapse: return 269;
 308     case CSSPropertyWebkitMarginAfter: return 270;
 309     case CSSPropertyWebkitMarginBefore: return 271;
 310     case CSSPropertyWebkitMarginEnd: return 272;
 311     case CSSPropertyWebkitMarginStart: return 273;
 312     // CSSPropertyWebkitMarquee was 274.
 313     // CSSPropertyInternalMarquee* were 275-279.
 314     case CSSPropertyWebkitMask: return 280;
 315     case CSSPropertyWebkitMaskBoxImage: return 281;
 316     case CSSPropertyWebkitMaskBoxImageOutset: return 282;
 317     case CSSPropertyWebkitMaskBoxImageRepeat: return 283;
 318     case CSSPropertyWebkitMaskBoxImageSlice: return 284;
 319     case CSSPropertyWebkitMaskBoxImageSource: return 285;
 320     case CSSPropertyWebkitMaskBoxImageWidth: return 286;
 321     case CSSPropertyWebkitMaskClip: return 287;
 322     case CSSPropertyWebkitMaskComposite: return 288;
 323     case CSSPropertyWebkitMaskImage: return 289;
 324     case CSSPropertyWebkitMaskOrigin: return 290;
 325     case CSSPropertyWebkitMaskPosition: return 291;
 326     case CSSPropertyWebkitMaskPositionX: return 292;
 327     case CSSPropertyWebkitMaskPositionY: return 293;
 328     case CSSPropertyWebkitMaskRepeat: return 294;
 329     case CSSPropertyWebkitMaskRepeatX: return 295;
 330     case CSSPropertyWebkitMaskRepeatY: return 296;
 331     case CSSPropertyWebkitMaskSize: return 297;
 332     case CSSPropertyWebkitMaxLogicalWidth: return 298;
 333     case CSSPropertyWebkitMaxLogicalHeight: return 299;
 334     case CSSPropertyWebkitMinLogicalWidth: return 300;
 335     case CSSPropertyWebkitMinLogicalHeight: return 301;
 336     // WebkitNbspMode has been deleted, was return 302;
 337     case CSSPropertyOrder: return 303;
 338     case CSSPropertyWebkitPaddingAfter: return 304;
 339     case CSSPropertyWebkitPaddingBefore: return 305;
 340     case CSSPropertyWebkitPaddingEnd: return 306;
 341     case CSSPropertyWebkitPaddingStart: return 307;
 342     case CSSPropertyAliasWebkitPerspective: return 308;
 343     case CSSPropertyAliasWebkitPerspectiveOrigin: return 309;
 344     case CSSPropertyWebkitPerspectiveOriginX: return 310;
 345     case CSSPropertyWebkitPerspectiveOriginY: return 311;
 346     case CSSPropertyWebkitPrintColorAdjust: return 312;
 347     case CSSPropertyWebkitRtlOrdering: return 313;
 348     case CSSPropertyWebkitRubyPosition: return 314;
 349     case CSSPropertyWebkitTextCombine: return 315;
 350     case CSSPropertyWebkitTextDecorationsInEffect: return 316;
 351     case CSSPropertyWebkitTextEmphasis: return 317;
 352     case CSSPropertyWebkitTextEmphasisColor: return 318;
 353     case CSSPropertyWebkitTextEmphasisPosition: return 319;
 354     case CSSPropertyWebkitTextEmphasisStyle: return 320;
 355     case CSSPropertyWebkitTextFillColor: return 321;
 356     case CSSPropertyWebkitTextSecurity: return 322;
 357     case CSSPropertyWebkitTextStroke: return 323;
 358     case CSSPropertyWebkitTextStrokeColor: return 324;
 359     case CSSPropertyWebkitTextStrokeWidth: return 325;
 360     case CSSPropertyAliasWebkitTransform: return 326;
 361     case CSSPropertyAliasWebkitTransformOrigin: return 327;
 362     case CSSPropertyWebkitTransformOriginX: return 328;
 363     case CSSPropertyWebkitTransformOriginY: return 329;
 364     case CSSPropertyWebkitTransformOriginZ: return 330;
 365     case CSSPropertyAliasWebkitTransformStyle: return 331;
 366     case CSSPropertyAliasWebkitTransition: return 332;
 367     case CSSPropertyAliasWebkitTransitionDelay: return 333;
 368     case CSSPropertyAliasWebkitTransitionDuration: return 334;
 369     case CSSPropertyAliasWebkitTransitionProperty: return 335;
 370     case CSSPropertyAliasWebkitTransitionTimingFunction: return 336;
 371     case CSSPropertyWebkitUserDrag: return 337;
 372     case CSSPropertyWebkitUserModify: return 338;
 373     case CSSPropertyWebkitUserSelect: return 339;
 374     // case CSSPropertyWebkitFlowInto: return 340;
 375     // case CSSPropertyWebkitFlowFrom: return 341;
 376     // case CSSPropertyWebkitRegionFragment: return 342;
 377     // case CSSPropertyWebkitRegionBreakAfter: return 343;
 378     // case CSSPropertyWebkitRegionBreakBefore: return 344;
 379     // case CSSPropertyWebkitRegionBreakInside: return 345;
 380     // case CSSPropertyShapeInside: return 346;
 381     case CSSPropertyShapeOutside: return 347;
 382     case CSSPropertyShapeMargin: return 348;
 383     // case CSSPropertyShapePadding: return 349;
 384     // case CSSPropertyWebkitWrapFlow: return 350;
 385     // case CSSPropertyWebkitWrapThrough: return 351;
 386     // CSSPropertyWebkitWrap was 352.
 387     // 353 was CSSPropertyWebkitTapHighlightColor (duplicated due to #ifdef).
 388     // 354 was CSSPropertyWebkitAppRegion (duplicated due to #ifdef).
 389     case CSSPropertyClipPath: return 355;
 390     case CSSPropertyClipRule: return 356;
 391     case CSSPropertyMask: return 357;
 392     // CSSPropertyEnableBackground has been removed, was return 358;
 393     case CSSPropertyFilter: return 359;
 394     case CSSPropertyFloodColor: return 360;
 395     case CSSPropertyFloodOpacity: return 361;
 396     case CSSPropertyLightingColor: return 362;
 397     case CSSPropertyStopColor: return 363;
 398     case CSSPropertyStopOpacity: return 364;
 399     case CSSPropertyColorInterpolation: return 365;
 400     case CSSPropertyColorInterpolationFilters: return 366;
 401     // case CSSPropertyColorProfile: return 367;
 402     case CSSPropertyColorRendering: return 368;
 403     case CSSPropertyFill: return 369;
 404     case CSSPropertyFillOpacity: return 370;
 405     case CSSPropertyFillRule: return 371;
 406     case CSSPropertyMarker: return 372;
 407     case CSSPropertyMarkerEnd: return 373;
 408     case CSSPropertyMarkerMid: return 374;
 409     case CSSPropertyMarkerStart: return 375;
 410     case CSSPropertyMaskType: return 376;
 411     case CSSPropertyShapeRendering: return 377;
 412     case CSSPropertyStroke: return 378;
 413     case CSSPropertyStrokeDasharray: return 379;
 414     case CSSPropertyStrokeDashoffset: return 380;
 415     case CSSPropertyStrokeLinecap: return 381;
 416     case CSSPropertyStrokeLinejoin: return 382;
 417     case CSSPropertyStrokeMiterlimit: return 383;
 418     case CSSPropertyStrokeOpacity: return 384;
 419     case CSSPropertyStrokeWidth: return 385;
 420     case CSSPropertyAlignmentBaseline: return 386;
 421     case CSSPropertyBaselineShift: return 387;
 422     case CSSPropertyDominantBaseline: return 388;
 423     case CSSPropertyGlyphOrientationHorizontal: return 389;
 424     case CSSPropertyGlyphOrientationVertical: return 390;
 425     // CSSPropertyKerning has been removed, was return 391;
 426     case CSSPropertyTextAnchor: return 392;
 427     case CSSPropertyVectorEffect: return 393;
 428     case CSSPropertyWritingMode: return 394;
 429     // CSSPropertyWebkitSvgShadow has been removed, was return 395;
 430     // CSSPropertyWebkitCursorVisibility has been removed, was return 396;
 431     // CSSPropertyImageOrientation has been removed, was return 397;
 432     // CSSPropertyImageResolution has been removed, was return 398;
 433 #if defined(ENABLE_CSS_COMPOSITING) && ENABLE_CSS_COMPOSITING
 434     case CSSPropertyWebkitBlendMode: return 399;
 435     case CSSPropertyWebkitBackgroundBlendMode: return 400;
 436 #endif
 437     case CSSPropertyTextDecorationLine: return 401;
 438     case CSSPropertyTextDecorationStyle: return 402;
 439     case CSSPropertyTextDecorationColor: return 403;
 440     case CSSPropertyTextAlignLast: return 404;
 441     case CSSPropertyTextUnderlinePosition: return 405;
 442     case CSSPropertyMaxZoom: return 406;
 443     case CSSPropertyMinZoom: return 407;
 444     case CSSPropertyOrientation: return 408;
 445     case CSSPropertyUserZoom: return 409;
 446     // CSSPropertyWebkitDashboardRegion was 410.
 447     // CSSPropertyWebkitOverflowScrolling was 411.
 448     case CSSPropertyWebkitAppRegion: return 412;
 449     case CSSPropertyWebkitFilter: return 413;
 450     case CSSPropertyWebkitBoxDecorationBreak: return 414;
 451     case CSSPropertyWebkitTapHighlightColor: return 415;
 452     case CSSPropertyBufferedRendering: return 416;
 453     case CSSPropertyGridAutoRows: return 417;
 454     case CSSPropertyGridAutoColumns: return 418;
 455     case CSSPropertyBackgroundBlendMode: return 419;
 456     case CSSPropertyMixBlendMode: return 420;
 457     case CSSPropertyTouchAction: return 421;
 458     case CSSPropertyGridArea: return 422;
 459     case CSSPropertyGridTemplateAreas: return 423;
 460     case CSSPropertyAnimation: return 424;
 461     case CSSPropertyAnimationDelay: return 425;
 462     case CSSPropertyAnimationDirection: return 426;
 463     case CSSPropertyAnimationDuration: return 427;
 464     case CSSPropertyAnimationFillMode: return 428;
 465     case CSSPropertyAnimationIterationCount: return 429;
 466     case CSSPropertyAnimationName: return 430;
 467     case CSSPropertyAnimationPlayState: return 431;
 468     case CSSPropertyAnimationTimingFunction: return 432;
 469     case CSSPropertyObjectFit: return 433;
 470     case CSSPropertyPaintOrder: return 434;
 471     case CSSPropertyMaskSourceType: return 435;
 472     case CSSPropertyIsolation: return 436;
 473     case CSSPropertyObjectPosition: return 437;
 474     // case CSSPropertyInternalCallback: return 438;
 475     case CSSPropertyShapeImageThreshold: return 439;
 476     case CSSPropertyColumnFill: return 440;
 477     case CSSPropertyTextJustify: return 441;
 478     // CSSPropertyTouchActionDelay was 442
 479     case CSSPropertyJustifySelf: return 443;
 480     case CSSPropertyScrollBehavior: return 444;
 481     case CSSPropertyWillChange: return 445;
 482     case CSSPropertyTransform: return 446;
 483     case CSSPropertyTransformOrigin: return 447;
 484     case CSSPropertyTransformStyle: return 448;
 485     case CSSPropertyPerspective: return 449;
 486     case CSSPropertyPerspectiveOrigin: return 450;
 487     case CSSPropertyBackfaceVisibility: return 451;
 488     case CSSPropertyGridTemplate: return 452;
 489     case CSSPropertyGrid: return 453;
 490     case CSSPropertyAll: return 454;
 491     case CSSPropertyJustifyItems: return 455;
 492     case CSSPropertyMotionPath: return 457;
 493     case CSSPropertyMotionOffset: return 458;
 494     case CSSPropertyMotionRotation: return 459;
 495     case CSSPropertyMotion: return 460;
 496     case CSSPropertyX: return 461;
 497     case CSSPropertyY: return 462;
 498     case CSSPropertyRx: return 463;
 499     case CSSPropertyRy: return 464;
 500     case CSSPropertyFontSizeAdjust: return 465;
 501     case CSSPropertyCx: return 466;
 502     case CSSPropertyCy: return 467;
 503     case CSSPropertyR: return 468;
 504     case CSSPropertyAliasEpubCaptionSide: return 469;
 505     case CSSPropertyAliasEpubTextCombine: return 470;
 506     case CSSPropertyAliasEpubTextEmphasis: return 471;
 507     case CSSPropertyAliasEpubTextEmphasisColor: return 472;
 508     case CSSPropertyAliasEpubTextEmphasisStyle: return 473;
 509     case CSSPropertyAliasEpubTextOrientation: return 474;
 510     case CSSPropertyAliasEpubTextTransform: return 475;
 511     case CSSPropertyAliasEpubWordBreak: return 476;
 512     case CSSPropertyAliasEpubWritingMode: return 477;
 513     case CSSPropertyAliasWebkitAlignContent: return 478;
 514     case CSSPropertyAliasWebkitAlignItems: return 479;
 515     case CSSPropertyAliasWebkitAlignSelf: return 480;
 516     case CSSPropertyAliasWebkitBorderBottomLeftRadius: return 481;
 517     case CSSPropertyAliasWebkitBorderBottomRightRadius: return 482;
 518     case CSSPropertyAliasWebkitBorderTopLeftRadius: return 483;
 519     case CSSPropertyAliasWebkitBorderTopRightRadius: return 484;
 520     case CSSPropertyAliasWebkitBoxSizing: return 485;
 521     case CSSPropertyAliasWebkitFlex: return 486;
 522     case CSSPropertyAliasWebkitFlexBasis: return 487;
 523     case CSSPropertyAliasWebkitFlexDirection: return 488;
 524     case CSSPropertyAliasWebkitFlexFlow: return 489;
 525     case CSSPropertyAliasWebkitFlexGrow: return 490;
 526     case CSSPropertyAliasWebkitFlexShrink: return 491;
 527     case CSSPropertyAliasWebkitFlexWrap: return 492;
 528     case CSSPropertyAliasWebkitJustifyContent: return 493;
 529     case CSSPropertyAliasWebkitOpacity: return 494;
 530     case CSSPropertyAliasWebkitOrder: return 495;
 531     case CSSPropertyAliasWebkitShapeImageThreshold: return 496;
 532     case CSSPropertyAliasWebkitShapeMargin: return 497;
 533     case CSSPropertyAliasWebkitShapeOutside: return 498;
 534     case CSSPropertyScrollSnapType: return 499;
 535     case CSSPropertyScrollSnapPointsX: return 500;
 536     case CSSPropertyScrollSnapPointsY: return 501;
 537     case CSSPropertyScrollSnapCoordinate: return 502;
 538     case CSSPropertyScrollSnapDestination: return 503;
 539     case CSSPropertyTranslate: return 504;
 540     case CSSPropertyRotate: return 505;
 541     case CSSPropertyScale: return 506;
 542     case CSSPropertyImageOrientation: return 507;
 543     case CSSPropertyBackdropFilter: return 508;
 544
 545     // 1. Add new features above this line (don't change the assigned numbers of the existing
 546     // items).
 547     // 2. Update maximumCSSSampleId() with the new maximum value.
 548     // 3. Run the update_use_counter_css.py script in
 549     // chromium/src/tools/metrics/histograms to update the UMA histogram names.
 550
 551     case CSSPropertyInvalid:
 552         ASSERT_NOT_REACHED();
 553         return 0;
 554     }
 555
 556     ASSERT_NOT_REACHED();
 557     return 0;
 558 }
 559
 560 static int maximumCSSSampleId() { return 508; }
 561
 562 void UseCounter::muteForInspector()
 563 {
 564     UseCounter::m_muteCount++;
 565 }
 566
 567 void UseCounter::unmuteForInspector()
 568 {
 569     UseCounter::m_muteCount--;
 570 }
 571
 572 UseCounter::UseCounter()
 573 {
 574     m_CSSFeatureBits.ensureSize(lastUnresolvedCSSProperty + 1);
 575     m_CSSFeatureBits.clearAll();
 576 }
 577
 578 UseCounter::~UseCounter()
 579 {
 580     // We always log PageDestruction so that we have a scale for the rest of the features.
 581     Platform::current()->histogramEnumeration("WebCore.FeatureObserver", PageDestruction, NumberOfFeatures);
 582
 583     updateMeasurements();
 584 }
 585
 586 void UseCounter::CountBits::updateMeasurements()
 587 {
 588     for (unsigned i = 0; i < NumberOfFeatures; ++i) {
 589         if (m_bits.quickGet(i))
 590             Platform::current()->histogramEnumeration("WebCore.FeatureObserver", i, NumberOfFeatures);
 591     }
 592     // Clearing count bits is timing sensitive.
 593     m_bits.clearAll();
 594 }
 595
 596 void UseCounter::updateMeasurements()
 597 {
 598     Platform::current()->histogramEnumeration("WebCore.FeatureObserver", PageVisits, NumberOfFeatures);
 599     m_countBits.updateMeasurements();
 600
 601     // FIXME: Sometimes this function is called more than once per page. The following
 602     //        bool guards against incrementing the page count when there are no CSS
 603     //        bits set. http://crbug.com/236262.
 604     bool needsPagesMeasuredUpdate = false;
 605     for (int i = firstCSSProperty; i <= lastUnresolvedCSSProperty; ++i) {
 606         if (m_CSSFeatureBits.quickGet(i)) {
 607             int cssSampleId = mapCSSPropertyIdToCSSSampleIdForHistogram(i);
 608             Platform::current()->histogramEnumeration("WebCore.FeatureObserver.CSSProperties", cssSampleId, maximumCSSSampleId());
 609             needsPagesMeasuredUpdate = true;
 610         }
 611     }
 612
 613     if (needsPagesMeasuredUpdate)
 614         Platform::current()->histogramEnumeration("WebCore.FeatureObserver.CSSProperties", totalPagesMeasuredCSSSampleId(), maximumCSSSampleId());
 615
 616     m_CSSFeatureBits.clearAll();
 617 }
 618
 619 void UseCounter::didCommitLoad()
 620 {
 621     updateMeasurements();
 622 }
 623
 624 void UseCounter::count(const Frame* frame, Feature feature)
 625 {
 626     if (!frame)
 627         return;
 628     FrameHost* host = frame->host();
 629     if (!host)
 630         return;
 631
 632     ASSERT(deprecationMessage(feature).isEmpty());
 633     host->useCounter().recordMeasurement(feature);
 634 }
 635
 636 void UseCounter::count(const Document& document, Feature feature)
 637 {
 638     count(document.frame(), feature);
 639 }
 640
 641 bool UseCounter::isCounted(Document& document, Feature feature)
 642 {
 643     Frame* frame = document.frame();
 644     if (!frame)
 645         return false;
 646     FrameHost* host = frame->host();
 647     if (!host)
 648         return false;
 649     return host->useCounter().hasRecordedMeasurement(feature);
 650 }
 651
 652 void UseCounter::count(const ExecutionContext* context, Feature feature)
 653 {
 654     if (!context)
 655         return;
 656     if (context->isDocument()) {
 657         count(*toDocument(context), feature);
 658         return;
 659     }
 660     if (context->isWorkerGlobalScope())
 661         toWorkerGlobalScope(context)->countFeature(feature);
 662 }
 663
 664 void UseCounter::countIfNotPrivateScript(v8::Isolate* isolate, const Frame* frame, Feature feature)
 665 {
 666     if (DOMWrapperWorld::current(isolate).isPrivateScriptIsolatedWorld())
 667         return;
 668     UseCounter::count(frame, feature);
 669 }
 670
 671 void UseCounter::countIfNotPrivateScript(v8::Isolate* isolate, const Document& document, Feature feature)
 672 {
 673     if (DOMWrapperWorld::current(isolate).isPrivateScriptIsolatedWorld())
 674         return;
 675     UseCounter::count(document, feature);
 676 }
 677
 678 void UseCounter::countIfNotPrivateScript(v8::Isolate* isolate, const ExecutionContext* context, Feature feature)
 679 {
 680     if (DOMWrapperWorld::current(isolate).isPrivateScriptIsolatedWorld())
 681         return;
 682     UseCounter::count(context, feature);
 683 }
 684
 685 void UseCounter::countDeprecation(const LocalFrame* frame, Feature feature)
 686 {
 687     if (!frame)
 688         return;
 689     FrameHost* host = frame->host();
 690     if (!host)
 691         return;
 692
 693     if (!host->useCounter().hasRecordedMeasurement(feature)) {
 694         host->useCounter().recordMeasurement(feature);
 695         ASSERT(!deprecationMessage(feature).isEmpty());
 696         frame->console().addMessage(ConsoleMessage::create(DeprecationMessageSource, WarningMessageLevel, deprecationMessage(feature)));
 697     }
 698 }
 699
 700 void UseCounter::countDeprecation(ExecutionContext* context, Feature feature)
 701 {
 702     if (!context)
 703         return;
 704     if (context->isDocument()) {
 705         UseCounter::countDeprecation(*toDocument(context), feature);
 706         return;
 707     }
 708     if (context->isWorkerGlobalScope())
 709         toWorkerGlobalScope(context)->countDeprecation(feature);
 710 }
 711
 712 void UseCounter::countDeprecation(const Document& document, Feature feature)
 713 {
 714     UseCounter::countDeprecation(document.frame(), feature);
 715 }
 716
 717 void UseCounter::countDeprecationIfNotPrivateScript(v8::Isolate* isolate, ExecutionContext* context, Feature feature)
 718 {
 719     if (DOMWrapperWorld::current(isolate).isPrivateScriptIsolatedWorld())
 720         return;
 721     UseCounter::countDeprecation(context, feature);
 722 }
 723
 724 static String replacedBy(const char* oldString, const char* newString)
 725 {
 726     return String::format("'%s' is deprecated. Please use '%s' instead.", oldString, newString);
 727 }
 728
 729 String UseCounter::deprecationMessage(Feature feature)
 730 {
 731     switch (feature) {
 732     // Quota
 733     case PrefixedStorageInfo:
 734         return "'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead.";
 735
 736     // Keyboard Event (DOM Level 3)
 737     case KeyboardEventKeyLocation:
 738         return replacedBy("KeyboardEvent.keyLocation", "KeyboardEvent.location");
 739
 740     case ConsoleMarkTimeline:
 741         return replacedBy("console.markTimeline", "console.timeStamp");
 742
 743     case FileError:
 744         return "FileError is deprecated. Please use the 'name' or 'message' attributes of DOMError rather than 'code'.";
 745
 746     case CSSStyleSheetInsertRuleOptionalArg:
 747         return "Calling CSSStyleSheet.insertRule() with one argument is deprecated. Please pass the index argument as well: insertRule(x, 0).";
 748
 749     case PrefixedVideoSupportsFullscreen:
 750         return "'HTMLVideoElement.webkitSupportsFullscreen' is deprecated. Its value is true if the video is loaded.";
 751
 752     case PrefixedVideoDisplayingFullscreen:
 753         return "'HTMLVideoElement.webkitDisplayingFullscreen' is deprecated. Please use the 'fullscreenchange' event instead.";
 754
 755     case PrefixedVideoEnterFullscreen:
 756         return replacedBy("HTMLVideoElement.webkitEnterFullscreen()", "Element.requestFullscreen()");
 757
 758     case PrefixedVideoExitFullscreen:
 759         return replacedBy("HTMLVideoElement.webkitExitFullscreen()", "Document.exitFullscreen()");
 760
 761     case PrefixedVideoEnterFullScreen:
 762         return replacedBy("HTMLVideoElement.webkitEnterFullScreen()", "Element.requestFullscreen()");
 763
 764     case PrefixedVideoExitFullScreen:
 765         return replacedBy("HTMLVideoElement.webkitExitFullScreen()", "Document.exitFullscreen()");
 766
 767     case PrefixedIndexedDB:
 768         return replacedBy("webkitIndexedDB", "indexedDB");
 769
 770     case PrefixedIDBCursorConstructor:
 771         return replacedBy("webkitIDBCursor", "IDBCursor");
 772
 773     case PrefixedIDBDatabaseConstructor:
 774         return replacedBy("webkitIDBDatabase", "IDBDatabase");
 775
 776     case PrefixedIDBFactoryConstructor:
 777         return replacedBy("webkitIDBFactory", "IDBFactory");
 778
 779     case PrefixedIDBIndexConstructor:
 780         return replacedBy("webkitIDBIndex", "IDBIndex");
 781
 782     case PrefixedIDBKeyRangeConstructor:
 783         return replacedBy("webkitIDBKeyRange", "IDBKeyRange");
 784
 785     case PrefixedIDBObjectStoreConstructor:
 786         return replacedBy("webkitIDBObjectStore", "IDBObjectStore");
 787
 788     case PrefixedIDBRequestConstructor:
 789         return replacedBy("webkitIDBRequest", "IDBRequest");
 790
 791     case PrefixedIDBTransactionConstructor:
 792         return replacedBy("webkitIDBTransaction", "IDBTransaction");
 793
 794     case PrefixedRequestAnimationFrame:
 795         return "'webkitRequestAnimationFrame' is vendor-specific. Please use the standard 'requestAnimationFrame' instead.";
 796
 797     case PrefixedCancelAnimationFrame:
 798         return "'webkitCancelAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
 799
 800     case PrefixedCancelRequestAnimationFrame:
 801         return "'webkitCancelRequestAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
 802
 803     case NodeIteratorDetach:
 804         return "'NodeIterator.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-nodeiterator-detach).";
 805
 806     case RangeDetach:
 807         return "'Range.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-range-detach).";
 808
 809     case SyncXHRWithCredentials:
 810         return "Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.";
 811
 812     case PictureSourceSrc:
 813         return "<source src> with a <picture> parent is invalid and therefore ignored. Please use <source srcset> instead.";
 814
 815     case XHRProgressEventPosition:
 816         return "The XMLHttpRequest progress event property 'position' is deprecated. Please use 'loaded' instead.";
 817
 818     case XHRProgressEventTotalSize:
 819         return "The XMLHttpRequest progress event property 'totalSize' is deprecated. Please use 'total' instead.";
 820
 821     case ConsoleTimeline:
 822         return replacedBy("console.timeline", "console.time");
 823
 824     case ConsoleTimelineEnd:
 825         return replacedBy("console.timelineEnd", "console.timeEnd");
 826
 827     case CanvasRenderingContext2DCompositeOperationDarker:
 828         return replacedBy("darker", "darken");
 829
 830     case XMLHttpRequestSynchronousInNonWorkerOutsideBeforeUnload:
 831         return "Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.";
 832
 833     case GetMatchedCSSRules:
 834         return "'getMatchedCSSRules()' is deprecated. For more help, check https://code.google.com/p/chromium/issues/detail?id=437569#c2";
 835
 836     case PrefixedImageSmoothingEnabled:
 837         return replacedBy("CanvasRenderingContext2D.webkitImageSmoothingEnabled", "CanvasRenderingContext2D.imageSmoothingEnabled");
 838
 839     case AudioListenerDopplerFactor:
 840         return "dopplerFactor is deprecated and will be removed in M45 when all doppler effects are removed";
 841
 842     case AudioListenerSpeedOfSound:
 843         return "speedOfSound is deprecated and will be removed in M45 when all doppler effects are removed";
 844
 845     case AudioListenerSetVelocity:
 846         return "setVelocity() is deprecated and will be removed in M45 when all doppler effects are removed";
 847
 848     case PrefixedWindowURL:
 849         return replacedBy("webkitURL", "URL");
 850
 851     case PrefixedAudioContext:
 852         return replacedBy("webkitAudioContext", "AudioContext");
 853
 854     case PrefixedOfflineAudioContext:
 855         return replacedBy("webkitOfflineAudioContext", "OfflineAudioContext");
 856
 857     case RangeExpand:
 858         return replacedBy("Range.expand()", "Selection.modify()");
 859
 860     case PrefixedMediaAddKey:
 861     case PrefixedMediaGenerateKeyRequest:
 862     case PrefixedMediaCancelKeyRequest:
 863         return "The prefixed Encrypted Media Extensions APIs are deprecated. Please use 'navigator.requestMediaKeySystemAccess()' instead.";
 864
 865     case CanPlayTypeKeySystem:
 866         return "canPlayType()'s 'keySystem' parameter is deprecated. Please use 'navigator.requestMediaKeySystemAccess()' instead.";
 867
 868     case SVGSVGElementForceRedraw:
 869         return "'SVGSVGElement.forceRedraw()' is deprecated, please do not use it. It is a no-op, as per SVG2 (https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__forceRedraw).";
 870
 871     case SVGSVGElementSuspendRedraw:
 872         return "'SVGSVGElement.suspendRedraw()' is deprecated, please do not use it. It is a no-op, as per SVG2 (https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__suspendRedraw).";
 873
 874     case SVGSVGElementUnsuspendRedraw:
 875         return "'SVGSVGElement.unsuspendRedraw()' is deprecated, please do not use it. It is a no-op, as per SVG2 (https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__unsuspendRedraw).";
 876
 877     case SVGSVGElementUnsuspendRedrawAll:
 878         return "'SVGSVGElement.unsuspendRedrawAll()' is deprecated, please do not use it. It is a no-op, as per SVG2 (https://svgwg.org/svg2-draft/struct.html#__svg__SVGSVGElement__unsuspendRedrawAll).";
 879
 880     // Powerful features on insecure origins (https://goo.gl/rStTGz)
 881     case DeviceMotionInsecureOrigin:
 882         return "The devicemotion event is deprecated on insecure origins, and support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.";
 883
 884     case DeviceOrientationInsecureOrigin:
 885         return "The deviceorientation event is deprecated on insecure origins, and support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.";
 886
 887     case GeolocationInsecureOrigin:
 888         return "getCurrentPosition() and watchPosition() are deprecated on insecure origins, and support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.";
 889
 890     case GetUserMediaInsecureOrigin:
 891         return "getUserMedia() no longer works on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.";
 892
 893     case EncryptedMediaInsecureOrigin:
 894         return "requestMediaKeySystemAccess() is deprecated on insecure origins in the specification. Support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.";
 895
 896     case DocumentGetCSSCanvasContext:
 897         return "The -webkit-canvas CSS feature is deprecated. Please use a positioned <canvas> element instead.";
 898
 899     case ElementCreateShadowRootMultiple:
 900         return "Calling Element.createShadowRoot() for an element which already hosts a shadow root is deprecated. See https://www.chromestatus.com/features/4668884095336448 for more details.";
 901
 902     case ElementCreateShadowRootMultipleWithUserAgentShadowRoot:
 903         return "Calling Element.createShadowRoot() for an element which already hosts a user-agent shadow root is deprecated. See https://www.chromestatus.com/features/4668884095336448 for more details.";
 904
 905     case CSSDeepCombinator:
 906         return "/deep/ combinator is deprecated. See https://www.chromestatus.com/features/6750456638341120 for more details.";
 907
 908     case CSSSelectorPseudoShadow:
 909         return "::shadow pseudo-element is deprecated. See https://www.chromestatus.com/features/6750456638341120 for more details.";
 910
 911     case PrefixedMouseEventMovementX:
 912         return replacedBy("webkitMovementX", "movementX");
 913
 914     case PrefixedMouseEventMovementY:
 915         return replacedBy("webkitMovementY", "movementY");
 916
 917     case SVGSMILElementInDocument:
 918     case SVGSMILAnimationInImageRegardlessOfCache:
 919         return "SVG's SMIL animations (<animate>, <set>, etc.) are deprecated and will be removed. Please use CSS animations or Web animations instead.";
 920
 921     case MediaStreamLabel:
 922         return "'MediaStream.label' is deprecated and will be removed in M47, around November 2015. Please use 'MediaStream.id' instead.";
 923
 924     case MediaStreamStop:
 925         return "'MediaStream.stop()' is deprecated and will be removed in M47, around November 2015. Please use 'MediaStream.active' instead.";
 926
 927     case MediaStreamEnded:
 928         return "'MediaStream.ended' is deprecated and will be removed in M47, around November 2015. Please use 'MediaStream.active' instead.";
 929
 930     case PrefixedPerformanceClearResourceTimings:
 931         return replacedBy("Performance.webkitClearResourceTimings", "Performance.clearResourceTimings");
 932
 933     case PrefixedPerformanceSetResourceTimingBufferSize:
 934         return replacedBy("Performance.webkitSetResourceTimingBufferSize", "Performance.setResourceTimingBufferSize");
 935
 936     case PrefixedPerformanceResourceTimingBufferFull:
 937         return replacedBy("Performance.onwebkitresourcetimingbufferfull", "Performance.onresourcetimingbufferfull");
 938
 939     case FetchAPIRequestContext:
 940         return "Request.context is deprecated and will be removed in M46 (see: https://www.chromestatus.com/feature/5534702526005248).";
 941
 942     case HeaderValueNotMatchingRFC7230:
 943         return "Header values not matching to RFC 7230, will be deprecated (see: https://www.chromestatus.com/feature/6457425448140800).";
 944
 945     // Features that aren't deprecated don't have a deprecation message.
 946     default:
 947         return String();
 948     }
 949 }
 950
 951 void UseCounter::count(CSSParserContext context, CSSPropertyID feature)
 952 {
 953     ASSERT(feature >= firstCSSProperty);
 954     ASSERT(feature <= lastUnresolvedCSSProperty);
 955
 956     if (!isUseCounterEnabledForMode(context.mode()))
 957         return;
 958
 959     m_CSSFeatureBits.quickSet(feature);
 960 }
 961
 962 void UseCounter::count(Feature feature)
 963 {
 964     ASSERT(deprecationMessage(feature).isEmpty());
 965     recordMeasurement(feature);
 966 }
 967
 968 UseCounter* UseCounter::getFrom(const Document* document)
 969 {
 970     if (document && document->frameHost())
 971         return &document->frameHost()->useCounter();
 972     return 0;
 973 }
 974
 975 UseCounter* UseCounter::getFrom(const CSSStyleSheet* sheet)
 976 {
 977     if (sheet)
 978         return getFrom(sheet->contents());
 979     return 0;
 980 }
 981
 982 UseCounter* UseCounter::getFrom(const StyleSheetContents* sheetContents)
 983 {
 984     // FIXME: We may want to handle stylesheets that have multiple owners
 985     //        http://crbug.com/242125
 986     if (sheetContents && sheetContents->hasSingleOwnerNode())
 987         return getFrom(sheetContents->singleOwnerDocument());
 988     return 0;
 989 }
 990
 991 } // namespace blink