Add "Instant:" prefix to Instant preview tabs in the Task manager.

chrome/browser/task_manager/task_manager_resource_providers.h

 // 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 CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_RESOURCE_PROVIDERS_H_
 #define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_RESOURCE_PROVIDERS_H_
 #pragma once
 
 #include <map>
 #include <vector>
@@ skipping 89 matching lines @@
   // TaskManager::Resource methods:
   virtual Type GetType() const OVERRIDE;
   virtual string16 GetTitle() const OVERRIDE;
   virtual string16 GetProfileName() const OVERRIDE;
   virtual SkBitmap GetIcon() const OVERRIDE;
   virtual TabContentsWrapper* GetTabContents() const OVERRIDE;
   virtual const Extension* GetExtension() const OVERRIDE;
 
  private:
   bool IsPrerendering() const;
+  bool IsInstantPreview() const;
 
   // Returns true if contains content rendered by an extension.
   bool HostsExtension() const;
 
   static SkBitmap* prerender_icon_;
   TabContentsWrapper* tab_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerTabContentsResource);
 };
 
@@ skipping 400 matching lines @@
 
   void AddToTaskManager(ChildProcessInfo child_process_info);
 
   TaskManager* task_manager_;
   TaskManagerBrowserProcessResource resource_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerBrowserProcessResourceProvider);
 };
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_RESOURCE_PROVIDERS_H_