chrome/common/localized_error.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 "chrome/common/localized_error.h"
   6
   7 #include "base/i18n/rtl.h"
   8 #include "base/logging.h"
   9 #include "base/strings/string16.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "base/values.h"
  14 #include "chrome/grit/chromium_strings.h"
  15 #include "chrome/grit/generated_resources.h"
  16 #include "components/error_page/common/error_page_params.h"
  17 #include "components/error_page/common/net_error_info.h"
  18 #include "net/base/escape.h"
  19 #include "net/base/net_errors.h"
  20 #include "net/base/net_util.h"
  21 #include "third_party/WebKit/public/platform/WebURLError.h"
  22 #include "ui/base/l10n/l10n_util.h"
  23 #include "ui/base/webui/web_ui_util.h"
  24
  25 #if defined(OS_WIN)
  26 #include "base/win/windows_version.h"
  27 #endif
  28
  29 #if defined(ENABLE_EXTENSIONS)
  30 #include "extensions/common/constants.h"
  31 #include "extensions/common/extension_icon_set.h"
  32 #include "extensions/common/manifest_handlers/icons_handler.h"
  33 #endif
  34
  35 using blink::WebURLError;
  36
  37 // Some error pages have no details.
  38 const unsigned int kErrorPagesNoDetails = 0;
  39
  40 namespace {
  41
  42 static const char kRedirectLoopLearnMoreUrl[] =
  43     "https://www.google.com/support/chrome/bin/answer.py?answer=95626";
  44 static const char kWeakDHKeyLearnMoreUrl[] =
  45     "http://sites.google.com/a/chromium.org/dev/"
  46     "err_ssl_weak_server_ephemeral_dh_key";
  47 #if defined(OS_CHROMEOS)
  48 static const char kAppWarningLearnMoreUrl[] =
  49     "chrome-extension://honijodknafkokifofgiaalefdiedpko/main.html"
  50     "?answer=1721911";
  51 #endif  // defined(OS_CHROMEOS)
  52
  53 enum NAV_SUGGESTIONS {
  54   SUGGEST_NONE                  = 0,
  55   SUGGEST_RELOAD                = 1 << 0,
  56   SUGGEST_CHECK_CONNECTION      = 1 << 1,
  57   SUGGEST_DNS_CONFIG            = 1 << 2,
  58   SUGGEST_FIREWALL_CONFIG       = 1 << 3,
  59   SUGGEST_PROXY_CONFIG          = 1 << 4,
  60   SUGGEST_DISABLE_EXTENSION     = 1 << 5,
  61   SUGGEST_LEARNMORE             = 1 << 6,
  62   SUGGEST_VIEW_POLICIES         = 1 << 7,
  63   SUGGEST_CONTACT_ADMINISTRATOR = 1 << 8,
  64 };
  65
  66 struct LocalizedErrorMap {
  67   int error_code;
  68   unsigned int title_resource_id;
  69   unsigned int heading_resource_id;
  70   // Detailed summary used when the error is in the main frame.
  71   unsigned int summary_resource_id;
  72   // Short one sentence description shown on mouse over when the error is in
  73   // a frame.
  74   unsigned int details_resource_id;
  75   int suggestions;  // Bitmap of SUGGEST_* values.
  76 };
  77
  78 const LocalizedErrorMap net_error_options[] = {
  79   {net::ERR_TIMED_OUT,
  80    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
  81    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
  82    IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
  83    IDS_ERRORPAGES_DETAILS_TIMED_OUT,
  84    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
  85        SUGGEST_PROXY_CONFIG,
  86   },
  87   {net::ERR_CONNECTION_TIMED_OUT,
  88    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
  89    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
  90    IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
  91    IDS_ERRORPAGES_DETAILS_TIMED_OUT,
  92    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
  93        SUGGEST_PROXY_CONFIG,
  94   },
  95   {net::ERR_CONNECTION_CLOSED,
  96    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
  97    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
  98    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
  99    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 100    SUGGEST_RELOAD,
 101   },
 102   {net::ERR_CONNECTION_RESET,
 103    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 104    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 105    IDS_ERRORPAGES_SUMMARY_CONNECTION_RESET,
 106    IDS_ERRORPAGES_DETAILS_CONNECTION_RESET,
 107    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
 108        SUGGEST_PROXY_CONFIG,
 109   },
 110   {net::ERR_CONNECTION_REFUSED,
 111    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 112    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 113    IDS_ERRORPAGES_SUMMARY_CONNECTION_REFUSED,
 114    IDS_ERRORPAGES_DETAILS_CONNECTION_REFUSED,
 115    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
 116        SUGGEST_PROXY_CONFIG,
 117   },
 118   {net::ERR_CONNECTION_FAILED,
 119    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 120    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 121    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 122    IDS_ERRORPAGES_DETAILS_CONNECTION_FAILED,
 123    SUGGEST_RELOAD,
 124   },
 125   {net::ERR_NAME_NOT_RESOLVED,
 126    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 127    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 128    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 129    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 130    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_DNS_CONFIG |
 131        SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
 132   },
 133   {net::ERR_ADDRESS_UNREACHABLE,
 134    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 135    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 136    IDS_ERRORPAGES_SUMMARY_ADDRESS_UNREACHABLE,
 137    IDS_ERRORPAGES_DETAILS_ADDRESS_UNREACHABLE,
 138    SUGGEST_RELOAD | SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
 139   },
 140   {net::ERR_NETWORK_ACCESS_DENIED,
 141    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 142    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 143    IDS_ERRORPAGES_SUMMARY_NETWORK_ACCESS_DENIED,
 144    IDS_ERRORPAGES_DETAILS_NETWORK_ACCESS_DENIED,
 145    SUGGEST_FIREWALL_CONFIG,
 146   },
 147   {net::ERR_PROXY_CONNECTION_FAILED,
 148    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 149    IDS_ERRORPAGES_HEADING_PROXY_CONNECTION_FAILED,
 150    IDS_ERRORPAGES_SUMMARY_PROXY_CONNECTION_FAILED,
 151    IDS_ERRORPAGES_DETAILS_PROXY_CONNECTION_FAILED,
 152    SUGGEST_PROXY_CONFIG,
 153   },
 154   {net::ERR_INTERNET_DISCONNECTED,
 155    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 156    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 157    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 158    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 159    SUGGEST_NONE,
 160   },
 161   {net::ERR_FILE_NOT_FOUND,
 162    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 163    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 164    IDS_ERRORPAGES_SUMMARY_NOT_FOUND,
 165    IDS_ERRORPAGES_DETAILS_FILE_NOT_FOUND,
 166    SUGGEST_NONE,
 167   },
 168   {net::ERR_CACHE_MISS,
 169    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 170    IDS_ERRORPAGES_HEADING_CACHE_MISS,
 171    IDS_ERRORPAGES_SUMMARY_CACHE_MISS,
 172    IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 173    SUGGEST_RELOAD,
 174   },
 175   {net::ERR_CACHE_READ_FAILURE,
 176    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 177    IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
 178    IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
 179    IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
 180    SUGGEST_RELOAD,
 181   },
 182   {net::ERR_NETWORK_IO_SUSPENDED,
 183    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 184    IDS_ERRORPAGES_HEADING_NETWORK_IO_SUSPENDED,
 185    IDS_ERRORPAGES_SUMMARY_NETWORK_IO_SUSPENDED,
 186    IDS_ERRORPAGES_DETAILS_NETWORK_IO_SUSPENDED,
 187    SUGGEST_RELOAD,
 188   },
 189   {net::ERR_TOO_MANY_REDIRECTS,
 190    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 191    IDS_ERRORPAGES_HEADING_TOO_MANY_REDIRECTS,
 192    IDS_ERRORPAGES_SUMMARY_TOO_MANY_REDIRECTS,
 193    IDS_ERRORPAGES_DETAILS_TOO_MANY_REDIRECTS,
 194    SUGGEST_RELOAD | SUGGEST_LEARNMORE,
 195   },
 196   {net::ERR_EMPTY_RESPONSE,
 197    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 198    IDS_ERRORPAGES_HEADING_EMPTY_RESPONSE,
 199    IDS_ERRORPAGES_SUMMARY_EMPTY_RESPONSE,
 200    IDS_ERRORPAGES_DETAILS_EMPTY_RESPONSE,
 201    SUGGEST_RELOAD,
 202   },
 203   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
 204    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 205    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 206    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 207    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
 208    SUGGEST_NONE,
 209   },
 210   {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
 211    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 212    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 213    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 214    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
 215    SUGGEST_NONE,
 216   },
 217   {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 218    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 219    IDS_ERRORPAGES_HEADING_DUPLICATE_HEADERS,
 220    IDS_ERRORPAGES_SUMMARY_DUPLICATE_HEADERS,
 221    IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_LOCATION,
 222    SUGGEST_NONE,
 223   },
 224   {net::ERR_CONTENT_LENGTH_MISMATCH,
 225    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 226    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 227    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 228    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 229    SUGGEST_RELOAD,
 230   },
 231   {net::ERR_INCOMPLETE_CHUNKED_ENCODING,
 232    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 233    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 234    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 235    IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
 236    SUGGEST_RELOAD,
 237   },
 238   {net::ERR_SSL_PROTOCOL_ERROR,
 239    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 240    IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
 241    IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
 242    IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
 243    SUGGEST_NONE,
 244   },
 245   {net::ERR_SSL_UNSAFE_NEGOTIATION,
 246    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 247    IDS_ERRORPAGES_HEADING_SSL_PROTOCOL_ERROR,
 248    IDS_ERRORPAGES_SUMMARY_SSL_PROTOCOL_ERROR,
 249    IDS_ERRORPAGES_DETAILS_SSL_UNSAFE_NEGOTIATION,
 250    SUGGEST_NONE,
 251   },
 252   {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
 253    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 254    IDS_ERRORPAGES_HEADING_BAD_SSL_CLIENT_AUTH_CERT,
 255    IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
 256    IDS_ERRORPAGES_DETAILS_BAD_SSL_CLIENT_AUTH_CERT,
 257    SUGGEST_NONE,
 258   },
 259   {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
 260    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 261    IDS_ERRORPAGES_HEADING_WEAK_SERVER_EPHEMERAL_DH_KEY,
 262    IDS_ERRORPAGES_SUMMARY_WEAK_SERVER_EPHEMERAL_DH_KEY,
 263    IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
 264    SUGGEST_LEARNMORE,
 265   },
 266   {net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN,
 267    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 268    IDS_ERRORPAGES_HEADING_PINNING_FAILURE,
 269    IDS_ERRORPAGES_SUMMARY_PINNING_FAILURE,
 270    IDS_ERRORPAGES_DETAILS_PINNING_FAILURE,
 271    SUGGEST_NONE,
 272   },
 273   {net::ERR_TEMPORARILY_THROTTLED,
 274    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 275    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 276    IDS_ERRORPAGES_SUMMARY_TEMPORARILY_THROTTLED,
 277    IDS_ERRORPAGES_DETAILS_TEMPORARILY_THROTTLED,
 278    SUGGEST_NONE,
 279   },
 280   {net::ERR_BLOCKED_BY_CLIENT,
 281    IDS_ERRORPAGES_TITLE_BLOCKED,
 282    IDS_ERRORPAGES_HEADING_BLOCKED,
 283    IDS_ERRORPAGES_SUMMARY_BLOCKED,
 284    IDS_ERRORPAGES_DETAILS_BLOCKED,
 285    SUGGEST_RELOAD | SUGGEST_DISABLE_EXTENSION,
 286   },
 287   {net::ERR_NETWORK_CHANGED,
 288    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 289    IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
 290    IDS_ERRORPAGES_SUMMARY_NETWORK_CHANGED,
 291    IDS_ERRORPAGES_DETAILS_NETWORK_CHANGED,
 292    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION,
 293   },
 294   {net::ERR_BLOCKED_BY_ADMINISTRATOR,
 295    IDS_ERRORPAGES_TITLE_BLOCKED,
 296    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 297    IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_ADMINISTRATOR,
 298    IDS_ERRORPAGES_DETAILS_BLOCKED_BY_ADMINISTRATOR,
 299    SUGGEST_VIEW_POLICIES | SUGGEST_CONTACT_ADMINISTRATOR,
 300   },
 301   {net::ERR_BLOCKED_ENROLLMENT_CHECK_PENDING,
 302    IDS_ERRORPAGES_TITLE_BLOCKED,
 303    IDS_ERRORPAGES_HEADING_BLOCKED_BY_ADMINISTRATOR,
 304    IDS_ERRORPAGES_SUMMARY_BLOCKED_ENROLLMENT_CHECK_PENDING,
 305    IDS_ERRORPAGES_DETAILS_BLOCKED_ENROLLMENT_CHECK_PENDING,
 306    SUGGEST_CHECK_CONNECTION,
 307   },
 308   {net::ERR_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 309    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 310    IDS_ERRORPAGES_HEADING_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 311    IDS_ERRORPAGES_SUMMARY_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 312    IDS_ERRORPAGES_DETAILS_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
 313    SUGGEST_NONE,
 314   },
 315   {net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH,
 316    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 317    IDS_ERRORPAGES_HEADING_SSL_VERSION_OR_CIPHER_MISMATCH,
 318    IDS_ERRORPAGES_SUMMARY_SSL_VERSION_OR_CIPHER_MISMATCH,
 319    IDS_ERRORPAGES_DETAILS_SSL_VERSION_OR_CIPHER_MISMATCH,
 320    SUGGEST_NONE,
 321   },
 322 };
 323
 324 // Special error page to be used in the case of navigating back to a page
 325 // generated by a POST.  LocalizedError::HasStrings expects this net error code
 326 // to also appear in the array above.
 327 const LocalizedErrorMap repost_error = {
 328   net::ERR_CACHE_MISS,
 329   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 330   IDS_HTTP_POST_WARNING_TITLE,
 331   IDS_ERRORPAGES_HTTP_POST_WARNING,
 332   IDS_ERRORPAGES_DETAILS_CACHE_MISS,
 333   SUGGEST_RELOAD,
 334 };
 335
 336 const LocalizedErrorMap http_error_options[] = {
 337   {403,
 338    IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
 339    IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
 340    IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
 341    IDS_ERRORPAGES_DETAILS_FORBIDDEN,
 342    SUGGEST_NONE,
 343   },
 344   {410,
 345    IDS_ERRORPAGES_TITLE_NOT_FOUND,
 346    IDS_ERRORPAGES_HEADING_NOT_FOUND,
 347    IDS_ERRORPAGES_SUMMARY_GONE,
 348    IDS_ERRORPAGES_DETAILS_GONE,
 349    SUGGEST_NONE,
 350   },
 351
 352   {500,
 353    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 354    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 355    IDS_ERRORPAGES_SUMMARY_INTERNAL_SERVER_ERROR,
 356    IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
 357    SUGGEST_RELOAD,
 358   },
 359   {501,
 360    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 361    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 362    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 363    IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
 364    SUGGEST_NONE,
 365   },
 366   {502,
 367    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 368    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 369    IDS_ERRORPAGES_SUMMARY_BAD_GATEWAY,
 370    IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
 371    SUGGEST_RELOAD,
 372   },
 373   {503,
 374    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 375    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 376    IDS_ERRORPAGES_SUMMARY_SERVICE_UNAVAILABLE,
 377    IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
 378    SUGGEST_RELOAD,
 379   },
 380   {504,
 381    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 382    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 383    IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
 384    IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
 385    SUGGEST_RELOAD,
 386   },
 387   {505,
 388    IDS_ERRORPAGES_TITLE_LOAD_FAILED,
 389    IDS_ERRORPAGES_HEADING_HTTP_SERVER_ERROR,
 390    IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE,
 391    IDS_ERRORPAGES_DETAILS_HTTP_VERSION_NOT_SUPPORTED,
 392    SUGGEST_NONE,
 393   },
 394 };
 395
 396 const LocalizedErrorMap dns_probe_error_options[] = {
 397   {chrome_common_net::DNS_PROBE_POSSIBLE,
 398    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 399    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 400    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 401    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 402    SUGGEST_RELOAD,
 403   },
 404
 405   // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
 406   // error, which might be one of several DNS-related errors.
 407
 408   {chrome_common_net::DNS_PROBE_STARTED,
 409    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 410    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 411    IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
 412    IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
 413    // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
 414    SUGGEST_RELOAD,
 415   },
 416
 417   // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
 418   // original error, which might be one of several DNS-related errors.
 419
 420   {chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET,
 421    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 422    IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
 423    IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
 424    IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
 425    SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
 426   },
 427   {chrome_common_net::DNS_PROBE_FINISHED_BAD_CONFIG,
 428    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 429    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 430    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 431    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 432    SUGGEST_RELOAD | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
 433   },
 434   {chrome_common_net::DNS_PROBE_FINISHED_NXDOMAIN,
 435    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 436    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 437    IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
 438    IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
 439    SUGGEST_RELOAD,
 440   },
 441 };
 442
 443 const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
 444                                                    size_t num_maps,
 445                                                    int error_code) {
 446   for (size_t i = 0; i < num_maps; ++i) {
 447     if (maps[i].error_code == error_code)
 448       return &maps[i];
 449   }
 450   return NULL;
 451 }
 452
 453 const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
 454                                         int error_code, bool is_post) {
 455   if (error_domain == net::kErrorDomain) {
 456     // Display a different page in the special case of navigating through the
 457     // history to an uncached page created by a POST.
 458     if (is_post && error_code == net::ERR_CACHE_MISS)
 459       return &repost_error;
 460     return FindErrorMapInArray(net_error_options,
 461                                arraysize(net_error_options),
 462                                error_code);
 463   } else if (error_domain == LocalizedError::kHttpErrorDomain) {
 464     return FindErrorMapInArray(http_error_options,
 465                                arraysize(http_error_options),
 466                                error_code);
 467   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 468     const LocalizedErrorMap* map =
 469         FindErrorMapInArray(dns_probe_error_options,
 470                             arraysize(dns_probe_error_options),
 471                             error_code);
 472     DCHECK(map);
 473     return map;
 474   } else {
 475     NOTREACHED();
 476     return NULL;
 477   }
 478 }
 479
 480 bool LocaleIsRTL() {
 481   return base::i18n::IsRTL();
 482 }
 483
 484 // Returns a dictionary containing the strings for the settings menu under the
 485 // wrench, and the advanced settings button.
 486 base::DictionaryValue* GetStandardMenuItemsText() {
 487   base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
 488   standard_menu_items_text->SetString("settingsTitle",
 489       l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
 490   standard_menu_items_text->SetString("advancedTitle",
 491       l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
 492   return standard_menu_items_text;
 493 }
 494
 495 // Gets the icon class for a given |error_domain| and |error_code|.
 496 const char* GetIconClassForError(const std::string& error_domain,
 497                                  int error_code) {
 498   if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
 499        error_domain == net::kErrorDomain) ||
 500       (error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET &&
 501        error_domain == chrome_common_net::kDnsProbeErrorDomain))
 502     return "icon-offline";
 503
 504   return "icon-generic";
 505 }
 506
 507 }  // namespace
 508
 509 const char LocalizedError::kHttpErrorDomain[] = "http";
 510
 511 void LocalizedError::GetStrings(int error_code,
 512                                 const std::string& error_domain,
 513                                 const GURL& failed_url,
 514                                 bool is_post,
 515                                 bool show_stale_load_button,
 516                                 const std::string& locale,
 517                                 const std::string& accept_languages,
 518                                 scoped_ptr<error_page::ErrorPageParams> params,
 519                                 base::DictionaryValue* error_strings) {
 520   bool rtl = LocaleIsRTL();
 521   error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
 522   webui::SetFontAndTextDirection(error_strings);
 523
 524   // Grab the strings and settings that depend on the error type.  Init
 525   // options with default values.
 526   LocalizedErrorMap options = {
 527     0,
 528     IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 529     IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
 530     IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
 531     kErrorPagesNoDetails,
 532     SUGGEST_NONE,
 533   };
 534
 535   const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
 536                                                       is_post);
 537   if (error_map)
 538     options = *error_map;
 539
 540   // If we got "access denied" but the url was a file URL, then we say it was a
 541   // file instead of just using the "not available" default message. Just adding
 542   // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
 543   // generated by some OSs when the operation doesn't involve a file URL.
 544   if (error_domain == net::kErrorDomain &&
 545       error_code == net::ERR_ACCESS_DENIED &&
 546       failed_url.scheme() == "file") {
 547     options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
 548     options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
 549     options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
 550     options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
 551     options.suggestions = SUGGEST_NONE;
 552   }
 553
 554   base::string16 failed_url_string(net::FormatUrl(
 555       failed_url, accept_languages, net::kFormatUrlOmitNothing,
 556       net::UnescapeRule::NORMAL, NULL, NULL, NULL));
 557   // URLs are always LTR.
 558   if (rtl)
 559     base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
 560   error_strings->SetString("title",
 561       l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
 562   error_strings->SetString("heading",
 563       l10n_util::GetStringUTF16(options.heading_resource_id));
 564
 565   std::string icon_class = GetIconClassForError(error_domain, error_code);
 566   error_strings->SetString("iconClass", icon_class);
 567
 568   base::DictionaryValue* summary = new base::DictionaryValue;
 569
 570   // For offline show a summary message underneath the heading.
 571   if (error_code == net::ERR_INTERNET_DISCONNECTED ||
 572       error_code == chrome_common_net::DNS_PROBE_FINISHED_NO_INTERNET) {
 573     error_strings->SetString("primaryParagraph",
 574         l10n_util::GetStringUTF16(options.summary_resource_id));
 575   } else {
 576     // Set summary message in the details.
 577     summary->SetString("msg",
 578         l10n_util::GetStringUTF16(options.summary_resource_id));
 579   }
 580   summary->SetString("failedUrl", failed_url_string);
 581   summary->SetString("hostName", net::IDNToUnicode(failed_url.host(),
 582                                                    accept_languages));
 583   summary->SetString("productName",
 584                      l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
 585
 586   error_strings->SetString(
 587       "details", l10n_util::GetStringUTF16(IDS_ERRORPAGE_NET_BUTTON_DETAILS));
 588   error_strings->SetString(
 589       "hideDetails", l10n_util::GetStringUTF16(
 590           IDS_ERRORPAGE_NET_BUTTON_HIDE_DETAILS));
 591   error_strings->Set("summary", summary);
 592
 593   if (options.details_resource_id != kErrorPagesNoDetails) {
 594     error_strings->SetString(
 595         "errorDetails", l10n_util::GetStringUTF16(options.details_resource_id));
 596   }
 597
 598   base::string16 error_string;
 599   if (error_domain == net::kErrorDomain) {
 600     // Non-internationalized error string, for debugging Chrome itself.
 601     error_string = base::ASCIIToUTF16(net::ErrorToShortString(error_code));
 602   } else if (error_domain == chrome_common_net::kDnsProbeErrorDomain) {
 603     std::string ascii_error_string =
 604         chrome_common_net::DnsProbeStatusToString(error_code);
 605     error_string = base::ASCIIToUTF16(ascii_error_string);
 606   } else {
 607     DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
 608     error_string = base::IntToString16(error_code);
 609   }
 610   error_strings->SetString("errorCode",
 611       l10n_util::GetStringFUTF16(IDS_ERRORPAGES_ERROR_CODE, error_string));
 612
 613   // Platform specific information for diagnosing network issues on OSX and
 614   // Windows.
 615 #if defined(OS_MACOSX) || defined(OS_WIN)
 616   if (error_domain == net::kErrorDomain &&
 617       error_code == net::ERR_INTERNET_DISCONNECTED) {
 618     int platform_string_id =
 619         IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM;
 620 #if defined(OS_WIN)
 621     // Different versions of Windows have different instructions.
 622     base::win::Version windows_version = base::win::GetVersion();
 623     if (windows_version < base::win::VERSION_VISTA) {
 624       // XP, XP64, and Server 2003.
 625       platform_string_id =
 626           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_XP;
 627     } else if (windows_version == base::win::VERSION_VISTA) {
 628       // Vista
 629       platform_string_id =
 630           IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_VISTA;
 631     }
 632 #endif  // defined(OS_WIN)
 633     // Platform dependent portion of the summary section.
 634     summary->SetString("msg",
 635         l10n_util::GetStringFUTF16(
 636             IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_INSTRUCTIONS_TEMPLATE,
 637             l10n_util::GetStringUTF16(platform_string_id)));
 638   }
 639 #endif  // defined(OS_MACOSX) || defined(OS_WIN)
 640
 641   // If no parameters were provided, use the defaults.
 642   if (!params) {
 643     params.reset(new error_page::ErrorPageParams());
 644     params->suggest_reload = !!(options.suggestions & SUGGEST_RELOAD);
 645   }
 646
 647   base::ListValue* suggestions = NULL;
 648   bool use_default_suggestions = true;
 649   if (!params->override_suggestions) {
 650     suggestions = new base::ListValue();
 651   } else {
 652     suggestions = params->override_suggestions.release();
 653     use_default_suggestions = false;
 654   }
 655
 656   error_strings->Set("suggestions", suggestions);
 657
 658   if (params->search_url.is_valid()) {
 659     error_strings->SetString("searchHeader",
 660         l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_GOOGLE_SEARCH));
 661     error_strings->SetString("searchUrl", params->search_url.spec());
 662     error_strings->SetString("searchTerms", params->search_terms);
 663     error_strings->SetInteger("searchTrackingId", params->search_tracking_id);
 664   }
 665
 666   // Add the reload suggestion, if needed.
 667   if (params->suggest_reload) {
 668     if (!is_post) {
 669       base::DictionaryValue* reload_button = new base::DictionaryValue;
 670       reload_button->SetString(
 671           "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
 672       reload_button->SetString("reloadUrl", failed_url.spec());
 673       error_strings->Set("reloadButton", reload_button);
 674       reload_button->SetInteger("reloadTrackingId", params->reload_tracking_id);
 675     } else {
 676       // If the page was created by a post, it can't be reloaded in the same
 677       // way, so just add a suggestion instead.
 678       // TODO(mmenke):  Make the reload button bring up the repost confirmation
 679       //                dialog for pages resulting from posts.
 680       base::DictionaryValue* suggest_reload_repost = new base::DictionaryValue;
 681       suggest_reload_repost->SetString("header",
 682           l10n_util::GetStringUTF16(
 683               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_HEADER));
 684       suggest_reload_repost->SetString("body",
 685           l10n_util::GetStringUTF16(
 686               IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_BODY));
 687       // Add at the front, so it appears before other suggestions, in the case
 688       // suggestions are being overridden by |params|.
 689       suggestions->Insert(0, suggest_reload_repost);
 690     }
 691   }
 692
 693   // If not using the default suggestions, nothing else to do.
 694   if (!use_default_suggestions)
 695     return;
 696
 697   if (show_stale_load_button) {
 698     base::DictionaryValue* stale_load_button = new base::DictionaryValue;
 699     stale_load_button->SetString(
 700         "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE));
 701     stale_load_button->SetString(
 702         "title",
 703         l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_LOAD_STALE_HELP));
 704     error_strings->Set("staleLoadButton", stale_load_button);
 705   }
 706
 707 #if defined(OS_CHROMEOS)
 708   error_strings->SetString(
 709       "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));
 710 #endif  // defined(OS_CHROMEOS)
 711
 712   if (options.suggestions & SUGGEST_CHECK_CONNECTION) {
 713     base::DictionaryValue* suggest_check_connection = new base::DictionaryValue;
 714     suggest_check_connection->SetString("header",
 715         l10n_util::GetStringUTF16(
 716             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_HEADER));
 717     suggest_check_connection->SetString("body",
 718         l10n_util::GetStringUTF16(
 719             IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_BODY));
 720     suggestions->Append(suggest_check_connection);
 721   }
 722
 723   if (options.suggestions & SUGGEST_DNS_CONFIG) {
 724     base::DictionaryValue* suggest_dns_config = new base::DictionaryValue;
 725     suggest_dns_config->SetString("header",
 726         l10n_util::GetStringUTF16(
 727             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_HEADER));
 728     suggest_dns_config->SetString("body",
 729         l10n_util::GetStringUTF16(
 730             IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_BODY));
 731     suggestions->Append(suggest_dns_config);
 732
 733     base::DictionaryValue* suggest_network_prediction =
 734         GetStandardMenuItemsText();
 735     suggest_network_prediction->SetString("header",
 736         l10n_util::GetStringUTF16(
 737             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_HEADER));
 738     suggest_network_prediction->SetString("body",
 739         l10n_util::GetStringUTF16(
 740             IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_BODY));
 741     suggest_network_prediction->SetString(
 742         "noNetworkPredictionTitle",
 743         l10n_util::GetStringUTF16(
 744             IDS_NETWORK_PREDICTION_ENABLED_DESCRIPTION));
 745     suggestions->Append(suggest_network_prediction);
 746   }
 747
 748   if (options.suggestions & SUGGEST_FIREWALL_CONFIG) {
 749     base::DictionaryValue* suggest_firewall_config = new base::DictionaryValue;
 750     suggest_firewall_config->SetString("header",
 751         l10n_util::GetStringUTF16(
 752             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_HEADER));
 753     suggest_firewall_config->SetString("body",
 754         l10n_util::GetStringUTF16(
 755             IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_BODY));
 756     suggestions->Append(suggest_firewall_config);
 757   }
 758
 759   if (options.suggestions & SUGGEST_PROXY_CONFIG) {
 760     base::DictionaryValue* suggest_proxy_config = GetStandardMenuItemsText();
 761     suggest_proxy_config->SetString("header",
 762         l10n_util::GetStringUTF16(
 763             IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_HEADER));
 764     suggest_proxy_config->SetString("body",
 765         l10n_util::GetStringFUTF16(IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_BODY,
 766             l10n_util::GetStringUTF16(
 767                 IDS_ERRORPAGES_SUGGESTION_PROXY_DISABLE_PLATFORM)));
 768     suggest_proxy_config->SetString("proxyTitle",
 769         l10n_util::GetStringUTF16(IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON));
 770
 771     suggestions->Append(suggest_proxy_config);
 772   }
 773
 774   if (options.suggestions & SUGGEST_DISABLE_EXTENSION) {
 775     base::DictionaryValue* suggest_disable_extension =
 776         new base::DictionaryValue;
 777     // There's only a header for this suggestion.
 778     suggest_disable_extension->SetString("header",
 779         l10n_util::GetStringUTF16(
 780             IDS_ERRORPAGES_SUGGESTION_DISABLE_EXTENSION_HEADER));
 781     suggestions->Append(suggest_disable_extension);
 782   }
 783
 784   if (options.suggestions & SUGGEST_VIEW_POLICIES) {
 785     base::DictionaryValue* suggest_view_policies = new base::DictionaryValue;
 786     suggest_view_policies->SetString(
 787         "header",
 788         l10n_util::GetStringUTF16(
 789             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_HEADER));
 790     suggest_view_policies->SetString(
 791         "body",
 792         l10n_util::GetStringUTF16(
 793             IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_BODY));
 794     suggestions->Append(suggest_view_policies);
 795   }
 796
 797   if (options.suggestions & SUGGEST_CONTACT_ADMINISTRATOR) {
 798     base::DictionaryValue* suggest_contant_administrator =
 799         new base::DictionaryValue;
 800     suggest_contant_administrator->SetString(
 801         "body",
 802         l10n_util::GetStringUTF16(
 803             IDS_ERRORPAGES_SUGGESTION_CONTACT_ADMINISTRATOR_BODY));
 804     suggestions->Append(suggest_contant_administrator);
 805   }
 806
 807   if (options.suggestions & SUGGEST_LEARNMORE) {
 808     GURL learn_more_url;
 809     switch (options.error_code) {
 810       case net::ERR_TOO_MANY_REDIRECTS:
 811         learn_more_url = GURL(kRedirectLoopLearnMoreUrl);
 812         break;
 813       case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY:
 814         learn_more_url = GURL(kWeakDHKeyLearnMoreUrl);
 815         break;
 816       default:
 817         break;
 818     }
 819
 820     if (learn_more_url.is_valid()) {
 821       // Add the language parameter to the URL.
 822       std::string query = learn_more_url.query() + "&hl=" + locale;
 823       GURL::Replacements repl;
 824       repl.SetQueryStr(query);
 825       learn_more_url = learn_more_url.ReplaceComponents(repl);
 826
 827       base::DictionaryValue* suggest_learn_more = new base::DictionaryValue;
 828       // There's only a body for this suggestion.
 829       suggest_learn_more->SetString("body",
 830           l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 831       suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 832       suggestions->Append(suggest_learn_more);
 833     }
 834   }
 835 }
 836
 837 base::string16 LocalizedError::GetErrorDetails(const blink::WebURLError& error,
 838                                                bool is_post) {
 839   const LocalizedErrorMap* error_map =
 840       LookupErrorMap(error.domain.utf8(), error.reason, is_post);
 841   if (error_map)
 842     return l10n_util::GetStringUTF16(error_map->details_resource_id);
 843   else
 844     return l10n_util::GetStringUTF16(IDS_ERRORPAGES_DETAILS_UNKNOWN);
 845 }
 846
 847 bool LocalizedError::HasStrings(const std::string& error_domain,
 848                                 int error_code) {
 849   // Whether or not the there are strings for an error does not depend on
 850   // whether or not the page was be generated by a POST, so just claim it was
 851   // not.
 852   return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != NULL;
 853 }
 854
 855 #if defined(ENABLE_EXTENSIONS)
 856 void LocalizedError::GetAppErrorStrings(
 857     const GURL& display_url,
 858     const extensions::Extension* app,
 859     base::DictionaryValue* error_strings) {
 860   DCHECK(app);
 861
 862   bool rtl = LocaleIsRTL();
 863   error_strings->SetString("textdirection", rtl ? "rtl" : "ltr");
 864
 865   base::string16 failed_url(base::ASCIIToUTF16(display_url.spec()));
 866   // URLs are always LTR.
 867   if (rtl)
 868     base::i18n::WrapStringWithLTRFormatting(&failed_url);
 869   error_strings->SetString(
 870      "url", l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
 871                                        failed_url.c_str()));
 872
 873   error_strings->SetString("title", app->name());
 874   error_strings->SetString(
 875       "icon",
 876       extensions::IconsInfo::GetIconURL(
 877           app,
 878           extension_misc::EXTENSION_ICON_GIGANTOR,
 879           ExtensionIconSet::MATCH_SMALLER).spec());
 880   error_strings->SetString("name", app->name());
 881   error_strings->SetString(
 882       "msg",
 883       l10n_util::GetStringUTF16(IDS_ERRORPAGES_APP_WARNING));
 884
 885 #if defined(OS_CHROMEOS)
 886   GURL learn_more_url(kAppWarningLearnMoreUrl);
 887   base::DictionaryValue* suggest_learn_more = new base::DictionaryValue();
 888   suggest_learn_more->SetString("msg",
 889                                 l10n_util::GetStringUTF16(
 890                                     IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
 891   suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
 892   error_strings->Set("suggestionsLearnMore", suggest_learn_more);
 893 #endif  // defined(OS_CHROMEOS)
 894 }
 895 #endif