Move ExtensionHost into extensions namespace

chrome/browser/ui/gtk/extensions/extension_popup_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_POPUP_GTK_H_
 #define CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_POPUP_GTK_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/ui/gtk/bubble/bubble_gtk.h"
 #include "chrome/browser/ui/gtk/extensions/extension_view_gtk.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/rect.h"
 
 class Browser;
+class GURL;
+
+namespace extensions {
 class ExtensionHost;
-class GURL;
+}
 
 class ExtensionPopupGtk : public content::NotificationObserver,
                           public BubbleDelegateGtk,
                           public ExtensionViewGtk::Container {
  public:
   enum ShowAction {
     SHOW,
     SHOW_AND_INSPECT
   };
 
@@ skipping 31 matching lines @@
   }
 
   // Declared here for testing.
   static const int kMinWidth;
   static const int kMinHeight;
   static const int kMaxWidth;
   static const int kMaxHeight;
 
  private:
   ExtensionPopupGtk(Browser* browser,
-                    ExtensionHost* host,
+                    extensions::ExtensionHost* host,
                     GtkWidget* anchor,
                     ShowAction show_action);
   virtual ~ExtensionPopupGtk();
 
   // Shows the popup widget. Called after loading completes.
   void ShowPopup();
 
   // See DestroyPopup. Does not return success or failure. Necessitated by
   // base::Bind and friends, which cannot handle a WeakPtr for a function that
   // has a return value.
   void DestroyPopupWithoutResult();
 
   Browser* browser_;
 
   BubbleGtk* bubble_;
 
   // We take ownership of the popup ExtensionHost.
-  scoped_ptr<ExtensionHost> host_;
+  scoped_ptr<extensions::ExtensionHost> host_;
 
   // The widget for anchoring the position of the bubble.
   GtkWidget* anchor_;
 
   content::NotificationRegistrar registrar_;
 
   static ExtensionPopupGtk* current_extension_popup_;
 
   // Whether a devtools window is attached to this bubble.
   bool being_inspected_;
 
   base::WeakPtrFactory<ExtensionPopupGtk> weak_factory_;
 
   // Used for testing. ---------------------------------------------------------
   gfx::Rect GetViewBounds();
 
   friend class BrowserActionTestUtil;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPopupGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_EXTENSIONS_EXTENSION_POPUP_GTK_H_