Componentize LocalizedError

This CL componentizes LocalizedError for clean integration on iOS. There are no
problematic dependencies, so the componentization is straightforward.

BUG=523362
TBR=sky

Review URL: https://codereview.chromium.org/1588523003

Cr-Commit-Position: refs/heads/master@{#370368}

4 files changed, 1030 insertions, 0 deletions

diff --git a/components/error_page/common/BUILD.gn b/components/error_page/common/BUILD.gn
index 0f34a3a..7d89fdc 100644
--- a/components/error_page/common/BUILD.gn
+++ b/components/error_page/common/BUILD.gn
@@ -8,6 +8,8 @@ static_library("common") {
     "error_page_params.h",
     "error_page_switches.cc",
     "error_page_switches.h",
+    "localized_error.cc",
+    "localized_error.h",
     "net_error_info.cc",
     "net_error_info.h",
     "offline_page_types.h",
@@ -15,6 +17,12 @@ static_library("common") {
 
   deps = [
     "//base",
+    "//base:i18n",
+    "//components/offline_pages:switches",
+    "//components/strings",
+    "//components/url_formatter",
+    "//net",
+    "//ui/base",
     "//url",
   ]
 }
diff --git a/components/error_page/common/DEPS b/components/error_page/common/DEPS
new file mode 100644
index 0000000..b1183da
--- /dev/null
+++ b/components/error_page/common/DEPS
@@ -0,0 +1,7 @@
+include_rules = [
+  "+components/offline_pages",
+  "+components/url_formatter",
+  "+components/strings",
+  "+net",
+  "+ui/base",
+]
diff --git a/components/error_page/common/localized_error.cc b/components/error_page/common/localized_error.cc
new file mode 100644
index 0000000..a349802
--- /dev/null
+++ b/components/error_page/common/localized_error.cc
@@ -0,0 +1,958 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/error_page/common/localized_error.h"
+
+#include <stddef.h>
+
+#include "base/command_line.h"
+#include "base/i18n/rtl.h"
+#include "base/logging.h"
+#include "base/macros.h"
+#include "base/metrics/field_trial.h"
+#include "base/strings/string16.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/values.h"
+#include "build/build_config.h"
+#include "components/error_page/common/error_page_params.h"
+#include "components/error_page/common/error_page_switches.h"
+#include "components/error_page/common/net_error_info.h"
+#include "components/strings/grit/components_chromium_strings.h"
+#include "components/strings/grit/components_google_chrome_strings.h"
+#include "components/strings/grit/components_strings.h"
+#include "components/url_formatter/url_formatter.h"
+#include "net/base/escape.h"
+#include "net/base/net_errors.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/webui/web_ui_util.h"
+
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif
+
+#if defined(OS_ANDROID)
+#include "components/offline_pages/offline_page_feature.h"
+#endif
+
+namespace error_page {
+
+namespace {
+
+// Some error pages have no details.
+const unsigned int kErrorPagesNoDetails = 0;
+
+static const char kRedirectLoopLearnMoreUrl[] =
+    "https://support.google.com/chrome/answer/95626";
+static const char kWeakDHKeyLearnMoreUrl[] =
+    "https://support.google.com/chrome?p=dh_error";
+static const int kGoogleCachedCopySuggestionType = 0;
+
+enum NAV_SUGGESTIONS {
+  SUGGEST_NONE                  = 0,
+  SUGGEST_RELOAD                = 1 << 0,
+  SUGGEST_CHECK_CONNECTION      = 1 << 1,
+  SUGGEST_DNS_CONFIG            = 1 << 2,
+  SUGGEST_FIREWALL_CONFIG       = 1 << 3,
+  SUGGEST_PROXY_CONFIG          = 1 << 4,
+  SUGGEST_DISABLE_EXTENSION     = 1 << 5,
+  SUGGEST_LEARNMORE             = 1 << 6,
+  SUGGEST_VIEW_POLICIES         = 1 << 7,
+  SUGGEST_CONTACT_ADMINISTRATOR = 1 << 8,
+  SUGGEST_UNSUPPORTED_CIPHER    = 1 << 9,
+};
+
+struct LocalizedErrorMap {
+  int error_code;
+  unsigned int title_resource_id;
+  unsigned int heading_resource_id;
+  // Detailed summary used when the error is in the main frame.
+  unsigned int summary_resource_id;
+  // Short one sentence description shown on mouse over when the error is in
+  // a frame.
+  unsigned int details_resource_id;
+  int suggestions;  // Bitmap of SUGGEST_* values.
+  unsigned int error_explanation_id;
+};
+
+const LocalizedErrorMap net_error_options[] = {
+  {net::ERR_TIMED_OUT,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
+   IDS_ERRORPAGES_DETAILS_TIMED_OUT,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
+       SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_CONNECTION_TIMED_OUT,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_TIMED_OUT,
+   IDS_ERRORPAGES_DETAILS_TIMED_OUT,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
+       SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_CONNECTION_CLOSED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_CLOSED,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_CONNECTION_RESET,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_RESET,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_RESET,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
+       SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_CONNECTION_REFUSED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_REFUSED,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_REFUSED,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG |
+       SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_CONNECTION_FAILED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_FAILED,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_FAILED,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_NAME_NOT_RESOLVED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
+   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION | SUGGEST_DNS_CONFIG |
+       SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_ICANN_NAME_COLLISION,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_ICANN_NAME_COLLISION,
+   IDS_ERRORPAGES_DETAILS_ICANN_NAME_COLLISION,
+   SUGGEST_NONE,
+  },
+  {net::ERR_ADDRESS_UNREACHABLE,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_ADDRESS_UNREACHABLE,
+   IDS_ERRORPAGES_DETAILS_ADDRESS_UNREACHABLE,
+   SUGGEST_RELOAD | SUGGEST_FIREWALL_CONFIG | SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_NETWORK_ACCESS_DENIED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NETWORK_ACCESS_DENIED,
+   IDS_ERRORPAGES_SUMMARY_NETWORK_ACCESS_DENIED,
+   IDS_ERRORPAGES_DETAILS_NETWORK_ACCESS_DENIED,
+   SUGGEST_FIREWALL_CONFIG,
+  },
+  {net::ERR_PROXY_CONNECTION_FAILED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_SUMMARY_PROXY_CONNECTION_FAILED,
+   IDS_ERRORPAGES_DETAILS_PROXY_CONNECTION_FAILED,
+   SUGGEST_PROXY_CONFIG,
+  },
+  {net::ERR_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
+   SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
+  },
+  {net::ERR_FILE_NOT_FOUND,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_FILE_NOT_FOUND,
+   IDS_ERRORPAGES_SUMMARY_FILE_NOT_FOUND,
+   IDS_ERRORPAGES_DETAILS_FILE_NOT_FOUND,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_CACHE_MISS,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
+   IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
+   IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_CACHE_READ_FAILURE,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_CACHE_READ_FAILURE,
+   IDS_ERRORPAGES_SUMMARY_CACHE_READ_FAILURE,
+   IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_NETWORK_IO_SUSPENDED,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_CONNECTION_INTERRUPTED,
+   IDS_ERRORPAGES_SUMMARY_NETWORK_IO_SUSPENDED,
+   IDS_ERRORPAGES_DETAILS_NETWORK_IO_SUSPENDED,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_TOO_MANY_REDIRECTS,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_TOO_MANY_REDIRECTS,
+   IDS_ERRORPAGES_DETAILS_TOO_MANY_REDIRECTS,
+   SUGGEST_RELOAD | SUGGEST_LEARNMORE,
+  },
+  {net::ERR_EMPTY_RESPONSE,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_EMPTY_RESPONSE,
+   IDS_ERRORPAGES_DETAILS_EMPTY_RESPONSE,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
+   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
+   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_RESPONSE_HEADERS_MULTIPLE_LOCATION,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
+   IDS_ERRORPAGES_DETAILS_RESPONSE_HEADERS_MULTIPLE_LOCATION,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_CONTENT_LENGTH_MISMATCH,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_CLOSED,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_INCOMPLETE_CHUNKED_ENCODING,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_CONNECTION_CLOSED,
+   IDS_ERRORPAGES_DETAILS_CONNECTION_CLOSED,
+   SUGGEST_RELOAD,
+  },
+  {net::ERR_SSL_PROTOCOL_ERROR,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_INVALID_RESPONSE,
+   IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
+   SUGGEST_NONE,
+  },
+  {net::ERR_BAD_SSL_CLIENT_AUTH_CERT,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_BAD_SSL_CLIENT_AUTH_CERT,
+   IDS_ERRORPAGES_DETAILS_BAD_SSL_CLIENT_AUTH_CERT,
+   SUGGEST_NONE,
+  },
+  {net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_SSL_SECURITY_ERROR,
+   IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
+   SUGGEST_LEARNMORE,
+  },
+  {net::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_CERT_ERROR_SUMMARY_PINNING_FAILURE_DETAILS,
+   IDS_CERT_ERROR_SUMMARY_PINNING_FAILURE_DESCRIPTION,
+   SUGGEST_NONE,
+  },
+  {net::ERR_TEMPORARILY_THROTTLED,
+   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
+   IDS_ERRORPAGES_DETAILS_TEMPORARILY_THROTTLED,
+   SUGGEST_NONE,
+  },
+  {net::ERR_BLOCKED_BY_CLIENT,
+   IDS_ERRORPAGES_TITLE_BLOCKED,
+   IDS_ERRORPAGES_HEADING_BLOCKED,
+   IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_EXTENSION,
+   IDS_ERRORPAGES_DETAILS_BLOCKED_BY_EXTENSION,
+   SUGGEST_RELOAD | SUGGEST_DISABLE_EXTENSION,
+  },
+  {net::ERR_NETWORK_CHANGED,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_CONNECTION_INTERRUPTED,
+   IDS_ERRORPAGES_SUMMARY_NETWORK_CHANGED,
+   IDS_ERRORPAGES_DETAILS_NETWORK_CHANGED,
+   SUGGEST_RELOAD | SUGGEST_CHECK_CONNECTION,
+  },
+  {net::ERR_BLOCKED_BY_ADMINISTRATOR,
+   IDS_ERRORPAGES_TITLE_BLOCKED,
+   IDS_ERRORPAGES_HEADING_BLOCKED,
+   IDS_ERRORPAGES_SUMMARY_BLOCKED_BY_ADMINISTRATOR,
+   IDS_ERRORPAGES_DETAILS_BLOCKED_BY_ADMINISTRATOR,
+   SUGGEST_VIEW_POLICIES | SUGGEST_CONTACT_ADMINISTRATOR,
+  },
+  {net::ERR_BLOCKED_ENROLLMENT_CHECK_PENDING,
+   IDS_ERRORPAGES_TITLE_BLOCKED,
+   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_SUMMARY_BLOCKED_ENROLLMENT_CHECK_PENDING,
+   IDS_ERRORPAGES_DETAILS_BLOCKED_ENROLLMENT_CHECK_PENDING,
+   SUGGEST_CHECK_CONNECTION,
+  },
+  {net::ERR_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_SSL_SECURITY_ERROR,
+   IDS_ERRORPAGES_DETAILS_SSL_FALLBACK_BEYOND_MINIMUM_VERSION,
+   SUGGEST_NONE,
+  },
+  {net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_SSL_VERSION_OR_CIPHER_MISMATCH,
+   IDS_ERRORPAGES_DETAILS_SSL_VERSION_OR_CIPHER_MISMATCH,
+   SUGGEST_UNSUPPORTED_CIPHER,
+  },
+  {net::ERR_TEMPORARY_BACKOFF,
+   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
+   IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
+   IDS_ERRORPAGES_SUMMARY_TEMPORARY_BACKOFF,
+   IDS_ERRORPAGES_DETAILS_TEMPORARY_BACKOFF,
+   SUGGEST_NONE,
+  },
+  {net::ERR_SSL_SERVER_CERT_BAD_FORMAT,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_INSECURE_CONNECTION,
+   IDS_ERRORPAGES_SUMMARY_SSL_SECURITY_ERROR,
+   IDS_ERRORPAGES_DETAILS_SSL_PROTOCOL_ERROR,
+   SUGGEST_NONE,
+  },
+};
+
+// Special error page to be used in the case of navigating back to a page
+// generated by a POST.  LocalizedError::HasStrings expects this net error code
+// to also appear in the array above.
+const LocalizedErrorMap repost_error = {
+  net::ERR_CACHE_MISS,
+  IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+  IDS_HTTP_POST_WARNING_TITLE,
+  IDS_ERRORPAGES_HTTP_POST_WARNING,
+  IDS_ERRORPAGES_DETAILS_CACHE_READ_FAILURE,
+  SUGGEST_RELOAD,
+};
+
+const LocalizedErrorMap http_error_options[] = {
+  {403,
+   IDS_ERRORPAGES_TITLE_ACCESS_DENIED,
+   IDS_ERRORPAGES_HEADING_ACCESS_DENIED,
+   IDS_ERRORPAGES_SUMMARY_FORBIDDEN,
+   IDS_ERRORPAGES_DETAILS_FORBIDDEN,
+   SUGGEST_NONE,
+  },
+  {410,
+   IDS_ERRORPAGES_TITLE_NOT_FOUND,
+   IDS_ERRORPAGES_HEADING_NOT_FOUND,
+   IDS_ERRORPAGES_SUMMARY_GONE,
+   IDS_ERRORPAGES_DETAILS_GONE,
+   SUGGEST_NONE,
+  },
+
+  {500,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE_REQUEST,
+   IDS_ERRORPAGES_DETAILS_INTERNAL_SERVER_ERROR,
+   SUGGEST_RELOAD,
+  },
+  {501,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE_REQUEST,
+   IDS_ERRORPAGES_DETAILS_NOT_IMPLEMENTED,
+   SUGGEST_NONE,
+  },
+  {502,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE_REQUEST,
+   IDS_ERRORPAGES_DETAILS_BAD_GATEWAY,
+   SUGGEST_RELOAD,
+  },
+  {503,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_WEBSITE_CANNOT_HANDLE_REQUEST,
+   IDS_ERRORPAGES_DETAILS_SERVICE_UNAVAILABLE,
+   SUGGEST_RELOAD,
+  },
+  {504,
+   IDS_ERRORPAGES_TITLE_LOAD_FAILED,
+   IDS_ERRORPAGES_HEADING_PAGE_NOT_WORKING,
+   IDS_ERRORPAGES_SUMMARY_GATEWAY_TIMEOUT,
+   IDS_ERRORPAGES_DETAILS_GATEWAY_TIMEOUT,
+   SUGGEST_RELOAD,
+  },
+};
+
+const LocalizedErrorMap dns_probe_error_options[] = {
+  {error_page::DNS_PROBE_POSSIBLE,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
+   IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
+   SUGGEST_RELOAD,
+  },
+
+  // DNS_PROBE_NOT_RUN is not here; NetErrorHelper will restore the original
+  // error, which might be one of several DNS-related errors.
+
+  {error_page::DNS_PROBE_STARTED,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_DNS_PROBE_RUNNING,
+   IDS_ERRORPAGES_DETAILS_DNS_PROBE_RUNNING,
+   // Include SUGGEST_RELOAD so the More button doesn't jump when we update.
+   SUGGEST_RELOAD,
+  },
+
+  // DNS_PROBE_FINISHED_UNKNOWN is not here; NetErrorHelper will restore the
+  // original error, which might be one of several DNS-related errors.
+
+  {error_page::DNS_PROBE_FINISHED_NO_INTERNET,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED,
+   IDS_ERRORPAGES_DETAILS_INTERNET_DISCONNECTED,
+   SUGGEST_CHECK_CONNECTION | SUGGEST_FIREWALL_CONFIG,
+  },
+  {error_page::DNS_PROBE_FINISHED_BAD_CONFIG,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
+   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
+   SUGGEST_RELOAD | SUGGEST_DNS_CONFIG | SUGGEST_FIREWALL_CONFIG,
+  },
+  {error_page::DNS_PROBE_FINISHED_NXDOMAIN,
+   IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+   IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+   IDS_ERRORPAGES_SUMMARY_NAME_NOT_RESOLVED,
+   IDS_ERRORPAGES_DETAILS_NAME_NOT_RESOLVED,
+   SUGGEST_RELOAD,
+  },
+};
+
+const LocalizedErrorMap* FindErrorMapInArray(const LocalizedErrorMap* maps,
+                                                   size_t num_maps,
+                                                   int error_code) {
+  for (size_t i = 0; i < num_maps; ++i) {
+    if (maps[i].error_code == error_code)
+      return &maps[i];
+  }
+  return NULL;
+}
+
+const LocalizedErrorMap* LookupErrorMap(const std::string& error_domain,
+                                        int error_code, bool is_post) {
+  if (error_domain == net::kErrorDomain) {
+    // Display a different page in the special case of navigating through the
+    // history to an uncached page created by a POST.
+    if (is_post && error_code == net::ERR_CACHE_MISS)
+      return &repost_error;
+    return FindErrorMapInArray(net_error_options,
+                               arraysize(net_error_options),
+                               error_code);
+  } else if (error_domain == LocalizedError::kHttpErrorDomain) {
+    return FindErrorMapInArray(http_error_options,
+                               arraysize(http_error_options),
+                               error_code);
+  } else if (error_domain == error_page::kDnsProbeErrorDomain) {
+    const LocalizedErrorMap* map =
+        FindErrorMapInArray(dns_probe_error_options,
+                            arraysize(dns_probe_error_options),
+                            error_code);
+    DCHECK(map);
+    return map;
+  } else {
+    NOTREACHED();
+    return NULL;
+  }
+}
+
+// Returns a dictionary containing the strings for the settings menu under the
+// app menu, and the advanced settings button.
+base::DictionaryValue* GetStandardMenuItemsText() {
+  base::DictionaryValue* standard_menu_items_text = new base::DictionaryValue();
+  standard_menu_items_text->SetString("settingsTitle",
+      l10n_util::GetStringUTF16(IDS_SETTINGS_TITLE));
+  standard_menu_items_text->SetString("advancedTitle",
+      l10n_util::GetStringUTF16(IDS_SETTINGS_SHOW_ADVANCED_SETTINGS));
+  return standard_menu_items_text;
+}
+
+// Gets the icon class for a given |error_domain| and |error_code|.
+const char* GetIconClassForError(const std::string& error_domain,
+                                 int error_code) {
+  if ((error_code == net::ERR_INTERNET_DISCONNECTED &&
+       error_domain == net::kErrorDomain) ||
+      (error_code == error_page::DNS_PROBE_FINISHED_NO_INTERNET &&
+       error_domain == error_page::kDnsProbeErrorDomain))
+    return "icon-offline";
+
+  return "icon-generic";
+}
+
+// If the first suggestion is for a Google cache copy link. Promote the
+// suggestion to a separate set of strings for displaying as a button.
+void AddGoogleCachedCopyButton(base::ListValue* suggestions,
+                               base::DictionaryValue* error_strings) {
+  if (!suggestions->empty()) {
+    base::DictionaryValue* suggestion;
+    suggestions->GetDictionary(0, &suggestion);
+    int type = -1;
+    suggestion->GetInteger("type", &type);
+
+    if (type == kGoogleCachedCopySuggestionType) {
+      base::string16 cache_url;
+      suggestion->GetString("urlCorrection", &cache_url);
+      int cache_tracking_id = -1;
+      suggestion->GetInteger("trackingId", &cache_tracking_id);
+      scoped_ptr<base::DictionaryValue> cache_button(new base::DictionaryValue);
+      cache_button->SetString(
+            "msg",
+            l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY));
+      cache_button->SetString("cacheUrl", cache_url);
+      cache_button->SetInteger("trackingId", cache_tracking_id);
+      error_strings->Set("cacheButton", cache_button.release());
+
+      // Remove the item from suggestions dictionary so that it does not get
+      // displayed by the template in the details section.
+      suggestions->Remove(0, nullptr);
+    }
+  }
+}
+
+}  // namespace
+
+const char LocalizedError::kHttpErrorDomain[] = "http";
+
+void LocalizedError::GetStrings(int error_code,
+                                const std::string& error_domain,
+                                const GURL& failed_url,
+                                bool is_post,
+                                bool stale_copy_in_cache,
+                                bool can_show_network_diagnostics_dialog,
+                                OfflinePageStatus offline_page_status,
+                                const std::string& locale,
+                                const std::string& accept_languages,
+                                scoped_ptr<error_page::ErrorPageParams> params,
+                                base::DictionaryValue* error_strings) {
+  webui::SetLoadTimeDataDefaults(locale, error_strings);
+
+  // Grab the strings and settings that depend on the error type.  Init
+  // options with default values.
+  LocalizedErrorMap options = {
+    0,
+    IDS_ERRORPAGES_TITLE_NOT_AVAILABLE,
+    IDS_ERRORPAGES_HEADING_NOT_AVAILABLE,
+    IDS_ERRORPAGES_SUMMARY_NOT_AVAILABLE,
+    kErrorPagesNoDetails,
+    SUGGEST_NONE,
+  };
+
+  const LocalizedErrorMap* error_map = LookupErrorMap(error_domain, error_code,
+                                                      is_post);
+  if (error_map)
+    options = *error_map;
+
+  // If we got "access denied" but the url was a file URL, then we say it was a
+  // file instead of just using the "not available" default message. Just adding
+  // ERR_ACCESS_DENIED to the map isn't sufficient, since that message may be
+  // generated by some OSs when the operation doesn't involve a file URL.
+  if (error_domain == net::kErrorDomain &&
+      error_code == net::ERR_ACCESS_DENIED &&
+      failed_url.scheme() == "file") {
+    options.title_resource_id = IDS_ERRORPAGES_TITLE_ACCESS_DENIED;
+    options.heading_resource_id = IDS_ERRORPAGES_HEADING_FILE_ACCESS_DENIED;
+    options.summary_resource_id = IDS_ERRORPAGES_SUMMARY_FILE_ACCESS_DENIED;
+    options.details_resource_id = IDS_ERRORPAGES_DETAILS_FILE_ACCESS_DENIED;
+    options.suggestions = SUGGEST_NONE;
+  }
+
+  base::string16 failed_url_string(url_formatter::FormatUrl(
+      failed_url, accept_languages, url_formatter::kFormatUrlOmitNothing,
+      net::UnescapeRule::NORMAL, nullptr, nullptr, nullptr));
+  // URLs are always LTR.
+  if (base::i18n::IsRTL())
+    base::i18n::WrapStringWithLTRFormatting(&failed_url_string);
+  error_strings->SetString("title",
+      l10n_util::GetStringFUTF16(options.title_resource_id, failed_url_string));
+  std::string icon_class = GetIconClassForError(error_domain, error_code);
+  error_strings->SetString("iconClass", icon_class);
+
+  base::string16 host_name(url_formatter::IDNToUnicode(failed_url.host(),
+                                                       accept_languages));
+
+  base::DictionaryValue* heading = new base::DictionaryValue;
+  heading->SetString("msg",
+                     l10n_util::GetStringUTF16(options.heading_resource_id));
+  heading->SetString("hostName", host_name);
+  error_strings->Set("heading", heading);
+
+  base::DictionaryValue* summary = new base::DictionaryValue;
+
+  // Set summary message under the heading.
+  summary->SetString("msg",
+      l10n_util::GetStringUTF16(options.summary_resource_id));
+  // Add a DNS definition string.
+  summary->SetString("dnsDefinition",
+      l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUMMARY_DNS_DEFINITION));
+
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+
+  // Check if easter egg should be disabled.
+  if (command_line->HasSwitch(
+          error_page::switches::kDisableDinosaurEasterEgg)) {
+    // The presence of this string disables the easter egg. Acts as a flag.
+    error_strings->SetString("disabledEasterEgg",
+        l10n_util::GetStringUTF16(IDS_ERRORPAGE_FUN_DISABLED));
+  }
+
+  summary->SetString("failedUrl", failed_url_string);
+  summary->SetString("hostName", host_name);
+
+  error_strings->SetString(
+      "details", l10n_util::GetStringUTF16(IDS_ERRORPAGE_NET_BUTTON_DETAILS));
+  error_strings->SetString(
+      "hideDetails", l10n_util::GetStringUTF16(
+          IDS_ERRORPAGE_NET_BUTTON_HIDE_DETAILS));
+  error_strings->Set("summary", summary);
+
+  error_strings->SetString(
+      "errorDetails",
+      options.details_resource_id != kErrorPagesNoDetails
+          ? l10n_util::GetStringUTF16(options.details_resource_id)
+          : base::string16());
+
+  base::string16 error_string;
+  if (error_domain == net::kErrorDomain) {
+    // Non-internationalized error string, for debugging Chrome itself.
+    error_string = base::ASCIIToUTF16(net::ErrorToShortString(error_code));
+  } else if (error_domain == error_page::kDnsProbeErrorDomain) {
+    std::string ascii_error_string =
+        error_page::DnsProbeStatusToString(error_code);
+    error_string = base::ASCIIToUTF16(ascii_error_string);
+  } else {
+    DCHECK_EQ(LocalizedError::kHttpErrorDomain, error_domain);
+    error_string = base::IntToString16(error_code);
+  }
+  error_strings->SetString("errorCode", error_string);
+
+  // Platform specific information for diagnosing network issues on OSX and
+  // Windows.
+#if (defined(OS_MACOSX) && !defined(OS_IOS)) || defined(OS_WIN)
+  if (error_domain == net::kErrorDomain &&
+      error_code == net::ERR_INTERNET_DISCONNECTED) {
+    int platform_string_id =
+        IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM;
+#if defined(OS_WIN)
+    // Different versions of Windows have different instructions.
+    base::win::Version windows_version = base::win::GetVersion();
+    if (windows_version < base::win::VERSION_VISTA) {
+      // XP, XP64, and Server 2003.
+      platform_string_id =
+          IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_XP;
+    } else if (windows_version == base::win::VERSION_VISTA) {
+      // Vista
+      platform_string_id =
+          IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_PLATFORM_VISTA;
+    }
+#endif  // defined(OS_WIN)
+    // Platform dependent portion of the summary section.
+    summary->SetString("msg",
+        l10n_util::GetStringFUTF16(
+            IDS_ERRORPAGES_SUMMARY_INTERNET_DISCONNECTED_INSTRUCTIONS_TEMPLATE,
+            l10n_util::GetStringUTF16(platform_string_id)));
+  }
+#endif  // (defined(OS_MACOSX) && !defined(OS_IOS)) || defined(OS_WIN)
+
+  // If no parameters were provided, use the defaults.
+  if (!params) {
+    params.reset(new error_page::ErrorPageParams());
+    params->suggest_reload = !!(options.suggestions & SUGGEST_RELOAD);
+  }
+
+  base::ListValue* suggestions = NULL;
+  bool use_default_suggestions = true;
+  if (!params->override_suggestions) {
+    suggestions = new base::ListValue();
+  } else {
+    suggestions = params->override_suggestions.release();
+    use_default_suggestions = false;
+    AddGoogleCachedCopyButton(suggestions, error_strings);
+  }
+  error_strings->Set("suggestions", suggestions);
+
+  if (params->search_url.is_valid()) {
+    error_strings->SetString("searchHeader",
+        l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_GOOGLE_SEARCH));
+    error_strings->SetString("searchUrl", params->search_url.spec());
+    error_strings->SetString("searchTerms", params->search_terms);
+    error_strings->SetInteger("searchTrackingId", params->search_tracking_id);
+  }
+
+  // Add the reload suggestion, if needed.
+  if (params->suggest_reload) {
+    if (!is_post) {
+      base::DictionaryValue* reload_button = new base::DictionaryValue;
+      reload_button->SetString(
+          "msg", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_RELOAD));
+      reload_button->SetString("reloadUrl", failed_url.spec());
+      error_strings->Set("reloadButton", reload_button);
+      reload_button->SetInteger("reloadTrackingId", params->reload_tracking_id);
+    } else {
+      // If the page was created by a post, it can't be reloaded in the same
+      // way, so just add a suggestion instead.
+      // TODO(mmenke):  Make the reload button bring up the repost confirmation
+      //                dialog for pages resulting from posts.
+      base::DictionaryValue* suggest_reload_repost = new base::DictionaryValue;
+      suggest_reload_repost->SetString("header",
+          l10n_util::GetStringUTF16(
+              IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_HEADER));
+      suggest_reload_repost->SetString("body",
+          l10n_util::GetStringUTF16(
+              IDS_ERRORPAGES_SUGGESTION_RELOAD_REPOST_BODY));
+      // Add at the front, so it appears before other suggestions, in the case
+      // suggestions are being overridden by |params|.
+      suggestions->Insert(0, suggest_reload_repost);
+    }
+  }
+
+  // If not using the default suggestions, nothing else to do.
+  if (!use_default_suggestions)
+    return;
+
+  const std::string& show_saved_copy_value =
+      command_line->GetSwitchValueASCII(error_page::switches::kShowSavedCopy);
+  bool show_saved_copy_primary =
+      (show_saved_copy_value ==
+       error_page::switches::kEnableShowSavedCopyPrimary);
+  bool show_saved_copy_secondary =
+      (show_saved_copy_value ==
+       error_page::switches::kEnableShowSavedCopySecondary);
+  bool show_saved_copy_visible =
+      (stale_copy_in_cache && !is_post &&
+      (show_saved_copy_primary || show_saved_copy_secondary));
+
+  if (show_saved_copy_visible) {
+    base::DictionaryValue* show_saved_copy_button = new base::DictionaryValue;
+    show_saved_copy_button->SetString(
+        "msg", l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY));
+    show_saved_copy_button->SetString(
+        "title",
+        l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_SAVED_COPY_HELP));
+    if (show_saved_copy_primary)
+      show_saved_copy_button->SetString("primary", "true");
+    error_strings->Set("showSavedCopyButton", show_saved_copy_button);
+  }
+
+#if defined(OS_ANDROID)
+  // Offline button will not be provided when we want to show something in the
+  // cache.
+  if (!show_saved_copy_visible) {
+    if (offline_page_status == OfflinePageStatus::HAS_OFFLINE_PAGE) {
+      base::DictionaryValue* show_offline_copy_button =
+          new base::DictionaryValue;
+      base::string16 button_text =
+          l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_SHOW_OFFLINE_COPY);
+      show_offline_copy_button->SetString("msg", button_text);
+      error_strings->Set("showOfflineCopyButton", show_offline_copy_button);
+    } else if (offline_page_status ==
+               OfflinePageStatus::HAS_OTHER_OFFLINE_PAGES) {
+      base::DictionaryValue* show_offline_pages_button =
+          new base::DictionaryValue;
+      base::string16 button_text = l10n_util::GetStringUTF16(
+          offline_pages::GetOfflinePageFeatureMode() ==
+              offline_pages::FeatureMode::ENABLED_AS_BOOKMARKS
+                  ? IDS_ERRORPAGES_BUTTON_SHOW_OFFLINE_PAGES_AS_BOOKMARKS
+                  : IDS_ERRORPAGES_BUTTON_SHOW_OFFLINE_PAGES);
+      show_offline_pages_button->SetString("msg", button_text);
+      error_strings->Set("showOfflinePagesButton", show_offline_pages_button);
+    }
+  }
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_CHROMEOS)
+  // ChromeOS has its own diagnostics extension, which doesn't rely on a
+  // browser-initiated dialog.
+  can_show_network_diagnostics_dialog = true;
+#endif
+  if (can_show_network_diagnostics_dialog && failed_url.is_valid() &&
+      failed_url.SchemeIsHTTPOrHTTPS()) {
+    error_strings->SetString(
+        "diagnose", l10n_util::GetStringUTF16(IDS_ERRORPAGES_BUTTON_DIAGNOSE));
+  }
+
+  if (options.suggestions & SUGGEST_CHECK_CONNECTION) {
+    base::DictionaryValue* suggest_check_connection = new base::DictionaryValue;
+    suggest_check_connection->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_HEADER));
+    suggest_check_connection->SetString("body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_CHECK_CONNECTION_BODY));
+    suggestions->Append(suggest_check_connection);
+  }
+
+  if (options.suggestions & SUGGEST_DNS_CONFIG) {
+    base::DictionaryValue* suggest_dns_config = new base::DictionaryValue;
+    suggest_dns_config->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_HEADER));
+    suggest_dns_config->SetString("body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_DNS_CONFIG_BODY));
+    suggestions->Append(suggest_dns_config);
+
+    base::DictionaryValue* suggest_network_prediction =
+        GetStandardMenuItemsText();
+    suggest_network_prediction->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_HEADER));
+    suggest_network_prediction->SetString("body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_NETWORK_PREDICTION_BODY));
+    suggest_network_prediction->SetString(
+        "noNetworkPredictionTitle",
+        l10n_util::GetStringUTF16(
+            IDS_NETWORK_PREDICTION_ENABLED_DESCRIPTION));
+    suggestions->Append(suggest_network_prediction);
+  }
+
+  if (options.suggestions & SUGGEST_FIREWALL_CONFIG) {
+    base::DictionaryValue* suggest_firewall_config = new base::DictionaryValue;
+    suggest_firewall_config->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_HEADER));
+    suggest_firewall_config->SetString("body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_FIREWALL_CONFIG_BODY));
+    suggestions->Append(suggest_firewall_config);
+  }
+
+  if (options.suggestions & SUGGEST_PROXY_CONFIG) {
+    base::DictionaryValue* suggest_proxy_config = GetStandardMenuItemsText();
+    suggest_proxy_config->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_HEADER));
+    suggest_proxy_config->SetString("body",
+        l10n_util::GetStringFUTF16(IDS_ERRORPAGES_SUGGESTION_PROXY_CONFIG_BODY,
+            l10n_util::GetStringUTF16(
+                IDS_ERRORPAGES_SUGGESTION_PROXY_DISABLE_PLATFORM)));
+    suggest_proxy_config->SetString("proxyTitle",
+        l10n_util::GetStringUTF16(IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON));
+
+    suggestions->Append(suggest_proxy_config);
+  }
+
+  if (options.suggestions & SUGGEST_DISABLE_EXTENSION) {
+    base::DictionaryValue* suggest_disable_extension =
+        new base::DictionaryValue;
+    // There's only a header for this suggestion.
+    suggest_disable_extension->SetString("header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_DISABLE_EXTENSION_HEADER));
+    suggestions->Append(suggest_disable_extension);
+  }
+
+  if (options.suggestions & SUGGEST_VIEW_POLICIES) {
+    base::DictionaryValue* suggest_view_policies = new base::DictionaryValue;
+    suggest_view_policies->SetString(
+        "header",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_HEADER));
+    suggest_view_policies->SetString(
+        "body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_VIEW_POLICIES_BODY));
+    suggestions->Append(suggest_view_policies);
+  }
+
+  if (options.suggestions & SUGGEST_CONTACT_ADMINISTRATOR) {
+    base::DictionaryValue* suggest_contant_administrator =
+        new base::DictionaryValue;
+    suggest_contant_administrator->SetString(
+        "body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_CONTACT_ADMINISTRATOR_BODY));
+    suggestions->Append(suggest_contant_administrator);
+  }
+
+  if (options.suggestions & SUGGEST_LEARNMORE) {
+    GURL learn_more_url;
+    switch (options.error_code) {
+      case net::ERR_TOO_MANY_REDIRECTS:
+        learn_more_url = GURL(kRedirectLoopLearnMoreUrl);
+        break;
+      case net::ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY:
+        learn_more_url = GURL(kWeakDHKeyLearnMoreUrl);
+        break;
+      default:
+        break;
+    }
+
+    if (learn_more_url.is_valid()) {
+      // Add the language parameter to the URL.
+      std::string query = learn_more_url.query() + "&hl=" + locale;
+      GURL::Replacements repl;
+      repl.SetQueryStr(query);
+      learn_more_url = learn_more_url.ReplaceComponents(repl);
+
+      base::DictionaryValue* suggest_learn_more = new base::DictionaryValue;
+      // There's only a body for this suggestion.
+      suggest_learn_more->SetString("body",
+          l10n_util::GetStringUTF16(IDS_ERRORPAGES_SUGGESTION_LEARNMORE_BODY));
+      suggest_learn_more->SetString("learnMoreUrl", learn_more_url.spec());
+      suggestions->Append(suggest_learn_more);
+    }
+  }
+
+  if (options.suggestions & SUGGEST_UNSUPPORTED_CIPHER) {
+    base::DictionaryValue* suggest_unsupported_cipher =
+        new base::DictionaryValue;
+    suggest_unsupported_cipher->SetString(
+        "body",
+        l10n_util::GetStringUTF16(
+            IDS_ERRORPAGES_SUGGESTION_UNSUPPORTED_CIPHER));
+    suggestions->Append(suggest_unsupported_cipher);
+  }
+}
+
+base::string16 LocalizedError::GetErrorDetails(const std::string& error_domain,
+                                               int error_code,
+                                               bool is_post) {
+  const LocalizedErrorMap* error_map =
+      LookupErrorMap(error_domain, error_code, is_post);
+  if (error_map)
+    return l10n_util::GetStringUTF16(error_map->details_resource_id);
+  else
+    return l10n_util::GetStringUTF16(IDS_ERRORPAGES_DETAILS_UNKNOWN);
+}
+
+bool LocalizedError::HasStrings(const std::string& error_domain,
+                                int error_code) {
+  // Whether or not the there are strings for an error does not depend on
+  // whether or not the page was be generated by a POST, so just claim it was
+  // not.
+  return LookupErrorMap(error_domain, error_code, /*is_post=*/false) != NULL;
+}
+
+}  // namespace error_page
diff --git a/components/error_page/common/localized_error.h b/components/error_page/common/localized_error.h
new file mode 100644
index 0000000..564ab17
--- /dev/null
+++ b/components/error_page/common/localized_error.h
@@ -0,0 +1,57 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_ERROR_PAGE_COMMON_LOCALIZED_ERROR_H_
+#define COMPONENTS_ERROR_PAGE_COMMON_LOCALIZED_ERROR_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/strings/string16.h"
+#include "components/error_page/common/offline_page_types.h"
+#include "url/gurl.h"
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace error_page {
+
+struct ErrorPageParams;
+
+class LocalizedError {
+ public:
+  // Fills |error_strings| with values to be used to build an error page used
+  // on HTTP errors, like 404 or connection reset.
+  static void GetStrings(int error_code,
+                         const std::string& error_domain,
+                         const GURL& failed_url,
+                         bool is_post,
+                         bool stale_copy_in_cache,
+                         bool can_show_network_diagnostics_dialog,
+                         error_page::OfflinePageStatus offline_page_status,
+                         const std::string& locale,
+                         const std::string& accept_languages,
+                         scoped_ptr<error_page::ErrorPageParams> params,
+                         base::DictionaryValue* strings);
+
+  // Returns a description of the encountered error.
+  static base::string16 GetErrorDetails(const std::string& error_domain,
+                                        int error_code,
+                                        bool is_post);
+
+  // Returns true if an error page exists for the specified parameters.
+  static bool HasStrings(const std::string& error_domain, int error_code);
+
+  static const char kHttpErrorDomain[];
+
+ private:
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(LocalizedError);
+};
+
+}  // namespace error_page
+
+#endif  // COMPONENTS_ERROR_PAGE_COMMON_LOCALIZED_ERROR_H_