WebUI TaskManager: Supports background-page mode.

chrome/browser/ui/views/frame/browser_view.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/views/frame/browser_view.h"
 
 #if defined(TOOLKIT_USES_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 1048 matching lines @@
   if (CommandLine::ForCurrentProcess()
         ->HasSwitch(switches::kEnableWebUITaskManager)) {
     TaskManagerDialog::Show();
   } else {
     browser::ShowTaskManager();
   }
 #endif  // defined(WEBUI_TASK_MANAGER)
 }
 
 void BrowserView::ShowBackgroundPages() {
-  browser::ShowBackgroundPages();
+#if defined(WEBUI_TASK_MANAGER)
+  TaskManagerDialog::ShowBackgroundPages();
+#else
+  // Uses WebUI TaskManager when swiches is set. It is beta feature.
+  if (CommandLine::ForCurrentProcess()
+        ->HasSwitch(switches::kEnableWebUITaskManager)) {
+    TaskManagerDialog::ShowBackgroundPages();
+  } else {
+    browser::ShowBackgroundPages();
+  }
+#endif  // defined(WEBUI_TASK_MANAGER)
 }
 
 void BrowserView::ShowBookmarkBubble(const GURL& url, bool already_bookmarked) {
   GetLocationBarView()->ShowStarBubble(url, !already_bookmarked);
 }
 
 void BrowserView::SetDownloadShelfVisible(bool visible) {
   // This can be called from the superclass destructor, when it destroys our
   // child views. At that point, browser_ is already gone.
   if (browser_ == NULL)
@@ skipping 1574 matching lines @@
 BrowserWindow* BrowserWindow::CreateBrowserWindow(Browser* browser) {
   // Create the view and the frame. The frame will attach itself via the view
   // so we don't need to do anything with the pointer.
   BrowserView* view = new BrowserView(browser);
   (new BrowserFrame(view))->InitBrowserFrame();
   view->GetWidget()->non_client_view()->SetAccessibleName(
       l10n_util::GetStringUTF16(IDS_PRODUCT_NAME));
   return view;
 }
 #endif