content/test/layouttest_support.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/public/test/layouttest_support.h"
   6
   7 #include "base/callback.h"
   8 #include "base/lazy_instance.h"
   9 #include "cc/blink/web_layer_impl.h"
  10 #include "content/browser/renderer_host/render_widget_host_impl.h"
  11 #include "content/child/bluetooth/web_bluetooth_impl.h"
  12 #include "content/child/geofencing/web_geofencing_provider_impl.h"
  13 #include "content/common/gpu/image_transport_surface.h"
  14 #include "content/public/common/page_state.h"
  15 #include "content/public/renderer/renderer_gamepad_provider.h"
  16 #include "content/renderer/fetchers/manifest_fetcher.h"
  17 #include "content/renderer/history_entry.h"
  18 #include "content/renderer/history_serialization.h"
  19 #include "content/renderer/render_frame_impl.h"
  20 #include "content/renderer/render_thread_impl.h"
  21 #include "content/renderer/render_view_impl.h"
  22 #include "content/renderer/renderer_blink_platform_impl.h"
  23 #include "content/shell/renderer/test_runner/test_common.h"
  24 #include "content/shell/renderer/test_runner/web_frame_test_proxy.h"
  25 #include "content/shell/renderer/test_runner/web_test_proxy.h"
  26 #include "third_party/WebKit/public/platform/WebBatteryStatus.h"
  27 #include "third_party/WebKit/public/platform/WebDeviceMotionData.h"
  28 #include "third_party/WebKit/public/platform/WebDeviceOrientationData.h"
  29 #include "third_party/WebKit/public/platform/WebGamepads.h"
  30 #include "third_party/WebKit/public/web/WebHistoryItem.h"
  31 #include "third_party/WebKit/public/web/WebView.h"
  32
  33 #if defined(OS_MACOSX)
  34 #include "content/browser/frame_host/popup_menu_helper_mac.h"
  35 #endif
  36
  37 using blink::WebBatteryStatus;
  38 using blink::WebDeviceMotionData;
  39 using blink::WebDeviceOrientationData;
  40 using blink::WebGamepad;
  41 using blink::WebGamepads;
  42 using blink::WebRect;
  43 using blink::WebSize;
  44
  45 namespace content {
  46
  47 namespace {
  48
  49 base::LazyInstance<base::Callback<void(RenderView*, WebTestProxyBase*)> >::Leaky
  50     g_callback = LAZY_INSTANCE_INITIALIZER;
  51
  52 RenderViewImpl* CreateWebTestProxy(const ViewMsg_New_Params& params) {
  53   typedef WebTestProxy<RenderViewImpl, const ViewMsg_New_Params&> ProxyType;
  54   ProxyType* render_view_proxy = new ProxyType(params);
  55   if (g_callback == 0)
  56     return render_view_proxy;
  57   g_callback.Get().Run(render_view_proxy, render_view_proxy);
  58   return render_view_proxy;
  59 }
  60
  61 WebTestProxyBase* GetWebTestProxyBase(RenderViewImpl* render_view) {
  62   typedef WebTestProxy<RenderViewImpl, ViewMsg_New_Params*> ViewProxy;
  63
  64   ViewProxy* render_view_proxy = static_cast<ViewProxy*>(render_view);
  65   return static_cast<WebTestProxyBase*>(render_view_proxy);
  66 }
  67
  68 RenderFrameImpl* CreateWebFrameTestProxy(
  69     RenderViewImpl* render_view,
  70     int32 routing_id) {
  71   typedef WebFrameTestProxy<RenderFrameImpl, RenderViewImpl*, int32> FrameProxy;
  72
  73   FrameProxy* render_frame_proxy = new FrameProxy(render_view, routing_id);
  74   render_frame_proxy->set_base_proxy(GetWebTestProxyBase(render_view));
  75
  76   return render_frame_proxy;
  77 }
  78
  79 }  // namespace
  80
  81
  82 void EnableWebTestProxyCreation(
  83     const base::Callback<void(RenderView*, WebTestProxyBase*)>& callback) {
  84   g_callback.Get() = callback;
  85   RenderViewImpl::InstallCreateHook(CreateWebTestProxy);
  86   RenderFrameImpl::InstallCreateHook(CreateWebFrameTestProxy);
  87 }
  88
  89 void FetchManifestDoneCallback(
  90     scoped_ptr<ManifestFetcher> fetcher,
  91     const FetchManifestCallback& callback,
  92     const blink::WebURLResponse& response,
  93     const std::string& data) {
  94   // |fetcher| will be autodeleted here as it is going out of scope.
  95   callback.Run(response, data);
  96 }
  97
  98 void FetchManifest(blink::WebView* view, const GURL& url,
  99                    const FetchManifestCallback& callback) {
 100   ManifestFetcher* fetcher = new ManifestFetcher(url);
 101   scoped_ptr<ManifestFetcher> autodeleter(fetcher);
 102
 103   // Start is called on fetcher which is also bound to the callback.
 104   // A raw pointer is used instead of a scoped_ptr as base::Passes passes
 105   // ownership and thus nulls the scoped_ptr. On MSVS this happens before
 106   // the call to Start, resulting in a crash.
 107   fetcher->Start(view->mainFrame(),
 108     base::Bind(&FetchManifestDoneCallback,
 109                base::Passed(&autodeleter),
 110                callback));
 111 }
 112
 113 void SetMockGamepadProvider(scoped_ptr<RendererGamepadProvider> provider) {
 114   RenderThreadImpl::current()
 115       ->blink_platform_impl()
 116       ->SetPlatformEventObserverForTesting(
 117           blink::WebPlatformEventGamepad,
 118           provider.Pass());
 119 }
 120
 121 void SetMockDeviceLightData(const double data) {
 122   RendererBlinkPlatformImpl::SetMockDeviceLightDataForTesting(data);
 123 }
 124
 125 void SetMockDeviceMotionData(const WebDeviceMotionData& data) {
 126   RendererBlinkPlatformImpl::SetMockDeviceMotionDataForTesting(data);
 127 }
 128
 129 void SetMockDeviceOrientationData(const WebDeviceOrientationData& data) {
 130   RendererBlinkPlatformImpl::SetMockDeviceOrientationDataForTesting(data);
 131 }
 132
 133 void MockBatteryStatusChanged(const WebBatteryStatus& status) {
 134   RenderThreadImpl::current()
 135       ->blink_platform_impl()
 136       ->MockBatteryStatusChangedForTesting(status);
 137 }
 138
 139 void EnableRendererLayoutTestMode() {
 140   RenderThreadImpl::current()->set_layout_test_mode(true);
 141 }
 142
 143 void EnableBrowserLayoutTestMode() {
 144 #if defined(OS_MACOSX)
 145   ImageTransportSurface::SetAllowOSMesaForTesting(true);
 146   PopupMenuHelper::DontShowPopupMenuForTesting();
 147 #endif
 148   RenderWidgetHostImpl::DisableResizeAckCheckForTesting();
 149 }
 150
 151 int GetLocalSessionHistoryLength(RenderView* render_view) {
 152   return static_cast<RenderViewImpl*>(render_view)->
 153       GetLocalSessionHistoryLengthForTesting();
 154 }
 155
 156 void SyncNavigationState(RenderView* render_view) {
 157   static_cast<RenderViewImpl*>(render_view)->SyncNavigationState();
 158 }
 159
 160 void SetFocusAndActivate(RenderView* render_view, bool enable) {
 161   static_cast<RenderViewImpl*>(render_view)->
 162       SetFocusAndActivateForTesting(enable);
 163 }
 164
 165 void ForceResizeRenderView(RenderView* render_view,
 166                            const WebSize& new_size) {
 167   RenderViewImpl* render_view_impl = static_cast<RenderViewImpl*>(render_view);
 168   render_view_impl->ForceResizeForTesting(new_size);
 169 }
 170
 171 void SetDeviceScaleFactor(RenderView* render_view, float factor) {
 172   static_cast<RenderViewImpl*>(render_view)->
 173       SetDeviceScaleFactorForTesting(factor);
 174 }
 175
 176 void SetDeviceColorProfile(RenderView* render_view, const std::string& name) {
 177   if (name == "reset") {
 178     static_cast<RenderViewImpl*>(render_view)->
 179         ResetDeviceColorProfileForTesting();
 180     return;
 181   }
 182
 183   std::vector<char> color_profile;
 184
 185   struct TestColorProfile {
 186     char* data() {
 187       static unsigned char color_profile_data[] = {
 188         0x00,0x00,0x01,0xea,0x54,0x45,0x53,0x54,0x00,0x00,0x00,0x00,
 189         0x6d,0x6e,0x74,0x72,0x52,0x47,0x42,0x20,0x58,0x59,0x5a,0x20,
 190         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 191         0x61,0x63,0x73,0x70,0x74,0x65,0x73,0x74,0x00,0x00,0x00,0x00,
 192         0x74,0x65,0x73,0x74,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 193         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xf6,0xd6,
 194         0x00,0x01,0x00,0x00,0x00,0x00,0xd3,0x2d,0x74,0x65,0x73,0x74,
 195         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 196         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 197         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 198         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x09,
 199         0x63,0x70,0x72,0x74,0x00,0x00,0x00,0xf0,0x00,0x00,0x00,0x0d,
 200         0x64,0x65,0x73,0x63,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x8c,
 201         0x77,0x74,0x70,0x74,0x00,0x00,0x01,0x8c,0x00,0x00,0x00,0x14,
 202         0x72,0x58,0x59,0x5a,0x00,0x00,0x01,0xa0,0x00,0x00,0x00,0x14,
 203         0x67,0x58,0x59,0x5a,0x00,0x00,0x01,0xb4,0x00,0x00,0x00,0x14,
 204         0x62,0x58,0x59,0x5a,0x00,0x00,0x01,0xc8,0x00,0x00,0x00,0x14,
 205         0x72,0x54,0x52,0x43,0x00,0x00,0x01,0xdc,0x00,0x00,0x00,0x0e,
 206         0x67,0x54,0x52,0x43,0x00,0x00,0x01,0xdc,0x00,0x00,0x00,0x0e,
 207         0x62,0x54,0x52,0x43,0x00,0x00,0x01,0xdc,0x00,0x00,0x00,0x0e,
 208         0x74,0x65,0x78,0x74,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 209         0x00,0x00,0x00,0x00,0x64,0x65,0x73,0x63,0x00,0x00,0x00,0x00,
 210         0x00,0x00,0x00,0x10,0x77,0x68,0x61,0x63,0x6b,0x65,0x64,0x2e,
 211         0x69,0x63,0x63,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 212         0x00,0x00,0x00,0x11,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 213         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 214         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 215         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 216         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 217         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 218         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 219         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 220         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 221         0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0xf3,0x52,
 222         0x00,0x01,0x00,0x00,0x00,0x01,0x16,0xcc,0x58,0x59,0x5a,0x20,
 223         0x00,0x00,0x00,0x00,0x00,0x00,0x34,0x8d,0x00,0x00,0xa0,0x2c,
 224         0x00,0x00,0x0f,0x95,0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,
 225         0x00,0x00,0x26,0x31,0x00,0x00,0x10,0x2f,0x00,0x00,0xbe,0x9b,
 226         0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x9c,0x18,
 227         0x00,0x00,0x4f,0xa5,0x00,0x00,0x04,0xfc,0x63,0x75,0x72,0x76,
 228         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x33
 229       };
 230
 231       return reinterpret_cast<char*>(color_profile_data);
 232     }
 233
 234     size_t size() {
 235       const size_t kTestColorProfileSizeInBytes = 490u;
 236       return kTestColorProfileSizeInBytes;
 237     }
 238   };
 239
 240   struct AdobeRGBColorProfile {
 241     char* data() {
 242       static unsigned char color_profile_data[] = {
 243         0x00,0x00,0x02,0x30,0x41,0x44,0x42,0x45,0x02,0x10,0x00,0x00,
 244         0x6d,0x6e,0x74,0x72,0x52,0x47,0x42,0x20,0x58,0x59,0x5a,0x20,
 245         0x07,0xd0,0x00,0x08,0x00,0x0b,0x00,0x13,0x00,0x33,0x00,0x3b,
 246         0x61,0x63,0x73,0x70,0x41,0x50,0x50,0x4c,0x00,0x00,0x00,0x00,
 247         0x6e,0x6f,0x6e,0x65,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 248         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xf6,0xd6,
 249         0x00,0x01,0x00,0x00,0x00,0x00,0xd3,0x2d,0x41,0x44,0x42,0x45,
 250         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 251         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 252         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 253         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0a,
 254         0x63,0x70,0x72,0x74,0x00,0x00,0x00,0xfc,0x00,0x00,0x00,0x32,
 255         0x64,0x65,0x73,0x63,0x00,0x00,0x01,0x30,0x00,0x00,0x00,0x6b,
 256         0x77,0x74,0x70,0x74,0x00,0x00,0x01,0x9c,0x00,0x00,0x00,0x14,
 257         0x62,0x6b,0x70,0x74,0x00,0x00,0x01,0xb0,0x00,0x00,0x00,0x14,
 258         0x72,0x54,0x52,0x43,0x00,0x00,0x01,0xc4,0x00,0x00,0x00,0x0e,
 259         0x67,0x54,0x52,0x43,0x00,0x00,0x01,0xd4,0x00,0x00,0x00,0x0e,
 260         0x62,0x54,0x52,0x43,0x00,0x00,0x01,0xe4,0x00,0x00,0x00,0x0e,
 261         0x72,0x58,0x59,0x5a,0x00,0x00,0x01,0xf4,0x00,0x00,0x00,0x14,
 262         0x67,0x58,0x59,0x5a,0x00,0x00,0x02,0x08,0x00,0x00,0x00,0x14,
 263         0x62,0x58,0x59,0x5a,0x00,0x00,0x02,0x1c,0x00,0x00,0x00,0x14,
 264         0x74,0x65,0x78,0x74,0x00,0x00,0x00,0x00,0x43,0x6f,0x70,0x79,
 265         0x72,0x69,0x67,0x68,0x74,0x20,0x32,0x30,0x30,0x30,0x20,0x41,
 266         0x64,0x6f,0x62,0x65,0x20,0x53,0x79,0x73,0x74,0x65,0x6d,0x73,
 267         0x20,0x49,0x6e,0x63,0x6f,0x72,0x70,0x6f,0x72,0x61,0x74,0x65,
 268         0x64,0x00,0x00,0x00,0x64,0x65,0x73,0x63,0x00,0x00,0x00,0x00,
 269         0x00,0x00,0x00,0x11,0x41,0x64,0x6f,0x62,0x65,0x20,0x52,0x47,
 270         0x42,0x20,0x28,0x31,0x39,0x39,0x38,0x29,0x00,0x00,0x00,0x00,
 271         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 272         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 273         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 274         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 275         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 276         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 277         0x00,0x00,0x00,0x00,0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,
 278         0x00,0x00,0xf3,0x51,0x00,0x01,0x00,0x00,0x00,0x01,0x16,0xcc,
 279         0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 280         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x63,0x75,0x72,0x76,
 281         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x33,0x00,0x00,
 282         0x63,0x75,0x72,0x76,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
 283         0x02,0x33,0x00,0x00,0x63,0x75,0x72,0x76,0x00,0x00,0x00,0x00,
 284         0x00,0x00,0x00,0x01,0x02,0x33,0x00,0x00,0x58,0x59,0x5a,0x20,
 285         0x00,0x00,0x00,0x00,0x00,0x00,0x9c,0x18,0x00,0x00,0x4f,0xa5,
 286         0x00,0x00,0x04,0xfc,0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,
 287         0x00,0x00,0x34,0x8d,0x00,0x00,0xa0,0x2c,0x00,0x00,0x0f,0x95,
 288         0x58,0x59,0x5a,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x26,0x31,
 289         0x00,0x00,0x10,0x2f,0x00,0x00,0xbe,0x9c
 290       };
 291
 292       return reinterpret_cast<char*>(color_profile_data);
 293     }
 294
 295     size_t size() {
 296       const size_t kAdobeRGBColorProfileSizeInBytes = 560u;
 297       return kAdobeRGBColorProfileSizeInBytes;
 298     }
 299   };
 300
 301   if (name == "sRGB") {
 302     color_profile.assign(name.data(), name.data() + name.size());
 303   } else if (name == "test") {
 304     TestColorProfile test;
 305     color_profile.assign(test.data(), test.data() + test.size());
 306   } else if (name == "adobeRGB") {
 307     AdobeRGBColorProfile test;
 308     color_profile.assign(test.data(), test.data() + test.size());
 309   }
 310
 311   static_cast<RenderViewImpl*>(render_view)->
 312       SetDeviceColorProfileForTesting(color_profile);
 313 }
 314
 315 void SetBluetoothMockDataSetForTesting(const std::string& name) {
 316   RenderThreadImpl::current()
 317       ->blink_platform_impl()
 318       ->BluetoothImplForTesting()
 319       ->SetBluetoothMockDataSetForTesting(name);
 320 }
 321
 322 void SetGeofencingMockProvider(bool service_available) {
 323   static_cast<WebGeofencingProviderImpl*>(
 324       RenderThreadImpl::current()->blink_platform_impl()->geofencingProvider())
 325           ->SetMockProvider(service_available);
 326 }
 327
 328 void ClearGeofencingMockProvider() {
 329   static_cast<WebGeofencingProviderImpl*>(
 330       RenderThreadImpl::current()->blink_platform_impl()->geofencingProvider())
 331           ->ClearMockProvider();
 332 }
 333
 334 void SetGeofencingMockPosition(double latitude, double longitude) {
 335   static_cast<WebGeofencingProviderImpl*>(
 336       RenderThreadImpl::current()->blink_platform_impl()->geofencingProvider())
 337           ->SetMockPosition(latitude, longitude);
 338 }
 339
 340 void UseSynchronousResizeMode(RenderView* render_view, bool enable) {
 341   static_cast<RenderViewImpl*>(render_view)->
 342       UseSynchronousResizeModeForTesting(enable);
 343 }
 344
 345 void EnableAutoResizeMode(RenderView* render_view,
 346                           const WebSize& min_size,
 347                           const WebSize& max_size) {
 348   static_cast<RenderViewImpl*>(render_view)->
 349       EnableAutoResizeForTesting(min_size, max_size);
 350 }
 351
 352 void DisableAutoResizeMode(RenderView* render_view, const WebSize& new_size) {
 353   static_cast<RenderViewImpl*>(render_view)->
 354       DisableAutoResizeForTesting(new_size);
 355 }
 356
 357 struct ToLower {
 358   base::char16 operator()(base::char16 c) { return tolower(c); }
 359 };
 360
 361 // Returns True if node1 < node2.
 362 bool HistoryEntryCompareLess(HistoryEntry::HistoryNode* node1,
 363                              HistoryEntry::HistoryNode* node2) {
 364   base::string16 target1 = node1->item().target();
 365   base::string16 target2 = node2->item().target();
 366   std::transform(target1.begin(), target1.end(), target1.begin(), ToLower());
 367   std::transform(target2.begin(), target2.end(), target2.begin(), ToLower());
 368   return target1 < target2;
 369 }
 370
 371 std::string DumpHistoryItem(HistoryEntry::HistoryNode* node,
 372                             int indent,
 373                             bool is_current_index) {
 374   std::string result;
 375
 376   const blink::WebHistoryItem& item = node->item();
 377   if (is_current_index) {
 378     result.append("curr->");
 379     result.append(indent - 6, ' '); // 6 == "curr->".length()
 380   } else {
 381     result.append(indent, ' ');
 382   }
 383
 384   std::string url = NormalizeLayoutTestURL(item.urlString().utf8());
 385   result.append(url);
 386   if (!item.target().isEmpty()) {
 387     result.append(" (in frame \"");
 388     result.append(item.target().utf8());
 389     result.append("\")");
 390   }
 391   result.append("\n");
 392
 393   std::vector<HistoryEntry::HistoryNode*> children = node->children();
 394   if (!children.empty()) {
 395     std::sort(children.begin(), children.end(), HistoryEntryCompareLess);
 396     for (size_t i = 0; i < children.size(); ++i)
 397       result += DumpHistoryItem(children[i], indent + 4, false);
 398   }
 399
 400   return result;
 401 }
 402
 403 std::string DumpBackForwardList(std::vector<PageState>& page_state,
 404                                 size_t current_index) {
 405   std::string result;
 406   result.append("\n============== Back Forward List ==============\n");
 407   for (size_t index = 0; index < page_state.size(); ++index) {
 408     scoped_ptr<HistoryEntry> entry(
 409         PageStateToHistoryEntry(page_state[index]));
 410     result.append(
 411         DumpHistoryItem(entry->root_history_node(),
 412                         8,
 413                         index == current_index));
 414   }
 415   result.append("===============================================\n");
 416   return result;
 417 }
 418
 419 blink::WebLayer* InstantiateWebLayer(scoped_refptr<cc::TextureLayer> layer) {
 420   return new cc_blink::WebLayerImpl(layer);
 421 }
 422
 423 }  // namespace content