Allow CopyFromBackingStore to fallback to copying from the renderer side if the accelerated surface…

chrome/browser/ui/browser_tab_contents.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/ui/browser_tab_contents.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/api/infobars/infobar_service.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/extensions/api/web_navigation/web_navigation_api.h"
@@ skipping 20 matching lines @@
 #include "chrome/browser/ui/autofill/tab_autofill_manager_delegate.h"
 #include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "chrome/browser/ui/hung_plugin_tab_helper.h"
 #include "chrome/browser/ui/pdf/pdf_tab_helper.h"
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "chrome/browser/ui/sad_tab_helper.h"
 #include "chrome/browser/ui/search/search_tab_helper.h"
 #include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
-#include "chrome/browser/ui/snapshot_tab_helper.h"
 #include "chrome/browser/ui/sync/tab_contents_synced_tab_delegate.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 #include "chrome/browser/ui/web_contents_modal_dialog_manager.h"
 #include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/browser/view_type_utils.h"
 #include "chrome/common/chrome_switches.h"
 #include "components/autofill/browser/autofill_external_delegate.h"
 #include "components/autofill/browser/autofill_manager.h"
 #include "content/public/browser/web_contents.h"
 
@@ skipping 86 matching lines @@
   PasswordManager::CreateForWebContentsAndDelegate(
       web_contents, PasswordManagerDelegateImpl::FromWebContents(web_contents));
   PDFTabHelper::CreateForWebContents(web_contents);
   PluginObserver::CreateForWebContents(web_contents);
   PrefsTabHelper::CreateForWebContents(web_contents);
   prerender::PrerenderTabHelper::CreateForWebContents(web_contents);
   SadTabHelper::CreateForWebContents(web_contents);
   safe_browsing::SafeBrowsingTabObserver::CreateForWebContents(web_contents);
   SearchEngineTabHelper::CreateForWebContents(web_contents);
   chrome::search::SearchTabHelper::CreateForWebContents(web_contents);
-  SnapshotTabHelper::CreateForWebContents(web_contents);
   SSLTabHelper::CreateForWebContents(web_contents);
   TabContentsSyncedTabDelegate::CreateForWebContents(web_contents);
   TabSpecificContentSettings::CreateForWebContents(web_contents);
   ThumbnailTabHelper::CreateForWebContents(web_contents);
   TranslateTabHelper::CreateForWebContents(web_contents);
   ZoomController::CreateForWebContents(web_contents);
 
 #if defined(ENABLE_AUTOMATION)
   AutomationTabHelper::CreateForWebContents(web_contents);
 #endif
@@ skipping 16 matching lines @@
   if (OneClickSigninHelper::CanOffer(
           web_contents, OneClickSigninHelper::CAN_OFFER_FOR_ALL, "", NULL)) {
     OneClickSigninHelper::CreateForWebContents(web_contents);
   }
 #endif
 
 #if defined(OS_WIN)
   MetroPinTabHelper::CreateForWebContents(web_contents);
 #endif
 }