[gtk] add oauth2 scopes zippies in extension install dialog

chrome/browser/extensions/extension_install_prompt.cc

 // 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 "chrome/browser/extensions/extension_install_prompt.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 145 matching lines @@
 
 string16 ExtensionInstallPrompt::Prompt::GetAbortButtonLabel() const {
   CHECK(HasAbortButtonLabel());
   return l10n_util::GetStringUTF16(kAbortButtonIds[type_]);
 }
 
 string16 ExtensionInstallPrompt::Prompt::GetPermissionsHeading() const {
   return l10n_util::GetStringUTF16(kPermissionsHeaderIds[type_]);
 }
 
+string16 ExtensionInstallPrompt::Prompt::GetOAuthHeading() const {
+  // TODO(estade): this should change based on type_.
+  return l10n_util::GetStringUTF16(IDS_EXTENSION_PROMPT_SCOPES_HEADING);
+}
+
 void ExtensionInstallPrompt::Prompt::AppendRatingStars(
     StarAppender appender, void* data) const {
   CHECK(appender);
   CHECK_EQ(INLINE_INSTALL_PROMPT, type_);
   int rating_integer = floor(average_rating_);
   double rating_fractional = average_rating_ - rating_integer;
 
   if (rating_fractional > 0.66) {
     rating_integer++;
   }
@@ skipping 290 matching lines @@
       NOTREACHED() << "Unknown message";
       break;
   }
 }
 
 // static
 bool ExtensionInstallPrompt::ShouldAutomaticallyApproveScopes() {
   return !CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kDemandUserScopeApproval);
 }