Instant: Use only one hidden WebContents per profile.

chrome/browser/ui/gtk/browser_window_gtk.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_UI_GTK_BROWSER_WINDOW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BROWSER_WINDOW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 20 matching lines @@
 class Browser;
 class BrowserTitlebar;
 class BrowserToolbarGtk;
 class DevToolsWindow;
 class DownloadShelfGtk;
 class ExtensionKeybindingRegistryGtk;
 class FindBarGtk;
 class FullscreenExitBubbleGtk;
 class GlobalMenuBar;
 class InfoBarContainerGtk;
-class InstantPreviewControllerGtk;
+class InstantOverlayControllerGtk;
 class LocationBar;
 class PrefRegistrySyncable;
 class StatusBubbleGtk;
 class TabContentsContainerGtk;
 class TabStripGtk;
 
 namespace autofill {
 class PasswordGenerator;
 }
 
@@ skipping 450 matching lines @@
 
   // A container that manages the GtkWidget*s that are the webpage display
   // (along with associated infobars, shelves, and other things that are part
   // of the content area).
   scoped_ptr<TabContentsContainerGtk> contents_container_;
 
   // A container that manages the GtkWidget*s of developer tools for the
   // selected tab contents.
   scoped_ptr<TabContentsContainerGtk> devtools_container_;
 
-  // A sub-controller that manages the Instant preview visual state.
-  scoped_ptr<InstantPreviewControllerGtk> instant_preview_controller_;
+  // A sub-controller that manages the Instant overlay visual state.
+  scoped_ptr<InstantOverlayControllerGtk> instant_overlay_controller_;
 
   // The Extension Keybinding Registry responsible for registering listeners for
   // accelerators that are sent to the window, that are destined to be turned
   // into events and sent to the extension.
   scoped_ptr<ExtensionKeybindingRegistryGtk> extension_keybinding_registry_;
 
   DevToolsDockSide devtools_dock_side_;
 
   // Docked devtools window instance. NULL when current tab is not inspected
   // or is inspected with undocked version of DevToolsWindow.
@@ skipping 46 matching lines @@
   scoped_ptr<FullscreenExitBubbleGtk> fullscreen_exit_bubble_;
 
   FullscreenExitBubbleType fullscreen_exit_bubble_type_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserWindowGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BROWSER_WINDOW_GTK_H_