Fix crash in extension settings when trying to enable/disable a crashed extension.

chrome/browser/ui/webui/options/extension_settings_handler.cc

 // 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.
 
 #include "chrome/browser/ui/webui/options/extension_settings_handler.h"
 
 #include "base/base64.h"
 #include "base/file_util.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
@@ skipping 624 matching lines @@
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_OPTIONS));
   localized_strings->SetString("extensionSettingsPolicyControlled",
      l10n_util::GetStringUTF16(IDS_EXTENSIONS_POLICY_CONTROLLED));
   localized_strings->SetString("extensionSettingsShowButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_SHOW_BUTTON));
   localized_strings->SetString("extensionSettingsLoadUnpackedButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_LOAD_UNPACKED_BUTTON));
   localized_strings->SetString("extensionSettingsPackButton",
       l10n_util::GetStringUTF16(IDS_EXTENSIONS_PACK_BUTTON));
   localized_strings->SetString("extensionSettingsUpdateButton",
-    l10n_util::GetStringUTF16(IDS_EXTENSIONS_UPDATE_BUTTON));
+      l10n_util::GetStringUTF16(IDS_EXTENSIONS_UPDATE_BUTTON));
+  localized_strings->SetString("extensionSettingsCrashMessage",
+      l10n_util::GetStringUTF16(IDS_EXTENSIONS_CRASHED_EXTENSION));
+  localized_strings->SetString("extensionSettingsInDevelopment",
+      l10n_util::GetStringUTF16(IDS_EXTENSIONS_IN_DEVELOPMENT));
 }
 
 void ExtensionSettingsHandler::Initialize() {
 }
 
 WebUIMessageHandler* ExtensionSettingsHandler::Attach(WebUI* web_ui) {
   // Call through to superclass.
   WebUIMessageHandler* handler = OptionsPageUIHandler::Attach(web_ui);
 
   extension_service_ = Profile::FromWebUI(web_ui_)
@@ skipping 171 matching lines @@
         continue;
     } else if (!extension->web_extent().MatchesURL(url)) {
       continue;
     }
 
     result->push_back(
         ExtensionPage(url, process->id(), host->routing_id(),
                       process->browser_context()->IsOffTheRecord()));
   }
 }