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

chrome/browser/task_manager/task_manager_resource_providers.h

Index: chrome/browser/task_manager/task_manager_resource_providers.h
diff --git a/chrome/browser/task_manager/task_manager_resource_providers.h b/chrome/browser/task_manager/task_manager_resource_providers.h
index e52cadfe4c15fae799b7ff48be64eab769288863..b577d969d26fbd3aa6a1fdbe5ca2c40fa38127b8 100644
--- a/chrome/browser/task_manager/task_manager_resource_providers.h
+++ b/chrome/browser/task_manager/task_manager_resource_providers.h
@@ -97,6 +97,10 @@ class TaskManagerTabContentsResource : public TaskManagerRendererResource {
   explicit TaskManagerTabContentsResource(TabContentsWrapper* tab_contents);
   virtual ~TaskManagerTabContentsResource();
 
+  // Called when the underlying tab_contents has been committed, and is thus no
+  // longer an Instant preview.
+  void InstantCommitted();
+
   // TaskManager::Resource methods:
   virtual Type GetType() const OVERRIDE;
   virtual string16 GetTitle() const OVERRIDE;
@@ -113,6 +117,7 @@ class TaskManagerTabContentsResource : public TaskManagerRendererResource {
 
   static SkBitmap* prerender_icon_;
   TabContentsWrapper* tab_contents_;
+  bool is_instant_preview_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerTabContentsResource);
 };
@@ -139,6 +144,7 @@ class TaskManagerTabContentsResourceProvider
 
   void Add(TabContentsWrapper* tab_contents);
   void Remove(TabContentsWrapper* tab_contents);
+  void Update(TabContentsWrapper* tab_contents);
 
   void AddToTaskManager(TabContentsWrapper* tab_contents);