Instant: Use only one hidden WebContents per profile.

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 81d9cdd8fb86fec3ec6134b5a3871b8b7660aac4..7a274f42c7ae0846a46d0a8a1455be32025456f3 100644
--- a/chrome/browser/task_manager/task_manager_resource_providers.h
+++ b/chrome/browser/task_manager/task_manager_resource_providers.h
@@ -105,7 +105,7 @@ class TaskManagerRendererResource : public TaskManager::Resource {
   DISALLOW_COPY_AND_ASSIGN(TaskManagerRendererResource);
 };
 
-// Tracks a single tab contents, prerendered page, instant page, or background
+// Tracks a single tab contents, prerendered page, Instant page, or background
 // printing page.
 class TaskManagerTabContentsResource : public TaskManagerRendererResource {
  public:
@@ -113,7 +113,7 @@ class TaskManagerTabContentsResource : public TaskManagerRendererResource {
   virtual ~TaskManagerTabContentsResource();
 
   // Called when the underlying web_contents has been committed and is no
-  // longer an Instant preview.
+  // longer an Instant overlay.
   void InstantCommitted();
 
   // TaskManager::Resource methods:
@@ -131,12 +131,12 @@ class TaskManagerTabContentsResource : public TaskManagerRendererResource {
   static gfx::ImageSkia* prerender_icon_;
   content::WebContents* web_contents_;
   Profile* profile_;
-  bool is_instant_preview_;
+  bool is_instant_overlay_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerTabContentsResource);
 };
 
-// Provides resources for tab contents, prerendered pages, instant pages, and
+// Provides resources for tab contents, prerendered pages, Instant pages, and
 // background printing pages.
 class TaskManagerTabContentsResourceProvider
     : public TaskManager::ResourceProvider,
@@ -624,7 +624,6 @@ class TaskManagerBrowserProcessResourceProvider
   DISALLOW_COPY_AND_ASSIGN(TaskManagerBrowserProcessResourceProvider);
 };
 
-
 class TaskManagerGuestResource : public TaskManagerRendererResource {
  public:
   explicit TaskManagerGuestResource(content::RenderViewHost* render_view_host);