extensions: Add ExtensionView interface.

chrome/browser/ui/gtk/extensions/extension_view_gtk.h

 // Copyright (c) 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_EXTENSIONS_EXTENSION_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_VIEW_GTK_H_
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/extensions/extension_view.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/size.h"
-
-class Browser;
-class SkBitmap;
 
 namespace content {
 class RenderViewHost;
 }
 
 namespace extensions {
 class ExtensionHost;
 }
 
-class ExtensionViewGtk {
+class ExtensionViewGtk : public ExtensionView {
  public:
   ExtensionViewGtk(extensions::ExtensionHost* extension_host, Browser* browser);
 
   class Container {
    public:
     virtual ~Container() {}
     virtual void OnExtensionSizeChanged(ExtensionViewGtk* view,
                                         const gfx::Size& new_size) {}
   };
 
   void Init();
 
-  gfx::NativeView native_view();
-  Browser* browser() const { return browser_; }
+  void SetContainer(Container* container) { container_ = container; }
 
   void SetBackground(const SkBitmap& background);
 
-  // Sets the container for this view.
-  void SetContainer(Container* container) { container_ = container; }
-
-  // Method for the ExtensionHost to notify us about the correct size for
-  // extension contents.
-  void ResizeDueToAutoResize(const gfx::Size& new_size);
-
-  // Method for the ExtensionHost to notify us when the RenderViewHost has a
-  // connection.
-  void RenderViewCreated();
-
+  gfx::NativeView native_view();
   content::RenderViewHost* render_view_host() const;
 
  private:
+  // Overridden from ExtensionView:
+  virtual Browser* GetBrowser() OVERRIDE;
+  virtual const Browser* GetBrowser() const OVERRIDE;
+  virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE;
+  virtual void RenderViewCreated() OVERRIDE;
+  virtual void DidStopLoading() OVERRIDE;
+
   void CreateWidgetHostView();
 
   Browser* browser_;
 
   extensions::ExtensionHost* extension_host_;
 
   // The background the view should have once it is initialized. This is set
   // when the view has a custom background, but hasn't been initialized yet.
   SkBitmap pending_background_;
 
   // This view's container.
   Container* container_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_VIEW_GTK_H_