Refactor PluginPermissionHelper as WebViewPermissionHelper

chrome/browser/guest_view/guest_view_base.h

 // Copyright 2014 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_GUEST_VIEW_GUEST_VIEW_BASE_H_
 #define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_
 
 #include <queue>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 133 matching lines @@
     return opener_.get();
   }
 
   void SetOpener(GuestViewBase* opener);
 
   // BrowserPluginGuestDelegate implementation.
   virtual void Destroy() OVERRIDE FINAL;
   virtual void RegisterDestructionCallback(
       const DestructionCallback& callback) OVERRIDE FINAL;
 
+  // Dispatches an event |event_name| to the embedder with the |event| fields.
+  // Change this function as a public function because WebViewGuest will use it
+  // to dispatch permission request event.
+  void DispatchEvent(Event* event);
+
  protected:
   GuestViewBase(int guest_instance_id,
                 content::WebContents* guest_web_contents,
                 const std::string& embedder_extension_id);
   virtual ~GuestViewBase();
 
-  // Dispatches an event |event_name| to the embedder with the |event| fields.
-  void DispatchEvent(Event* event);
-
  private:
   class EmbedderWebContentsObserver;
 
   void SendQueuedEvents();
 
   // WebContentsObserver implementation.
   virtual void DidStopLoading(
       content::RenderViewHost* render_view_host) OVERRIDE FINAL;
   virtual void WebContentsDestroyed() OVERRIDE FINAL;
 
@@ skipping 32 matching lines @@
   scoped_ptr<EmbedderWebContentsObserver> embedder_web_contents_observer_;
 
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<GuestViewBase> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestViewBase);
 };
 
 #endif  // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_BASE_H_