Cleanup: Remove unneeded forward declarations in webkit/plugins/.

webkit/plugins/npapi/webplugin.h

 // Copyright (c) 2011 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 WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_H_
 #define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "ui/gfx/gl/gpu_preference.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/rect.h"
 
 // TODO(port): this typedef is obviously incorrect on non-Windows
 // platforms, but now a lot of code now accidentally depends on them
 // existing.  #ifdef out these declarations and fix all the users.
 typedef void* HANDLE;
 
 class GURL;
 struct NPObject;
 
-namespace WebKit {
-class WebFrame;
-}
-
 namespace webkit {
 namespace npapi {
 
-class WebPluginDelegate;
-class WebPluginParentView;
 class WebPluginResourceClient;
 #if defined(OS_MACOSX)
 class WebPluginAcceleratedSurface;
 #endif
 
 // Describes the new location for a plugin window.
 struct WebPluginGeometry {
   WebPluginGeometry();
   ~WebPluginGeometry();
 
@@ skipping 96 matching lines @@
   virtual void ResourceClientDeleted(
       WebPluginResourceClient* resource_client) {}
 
   // Defers the loading of the resource identified by resource_id. This is
   // controlled by the defer parameter.
   virtual void SetDeferResourceLoading(unsigned long resource_id,
                                        bool defer) = 0;
 
 #if defined(OS_MACOSX)
   // Called to inform the WebPlugin that the plugin has gained or lost focus.
-  virtual void FocusChanged(bool focused) {};
+  virtual void FocusChanged(bool focused) {}
 
   // Starts plugin IME.
-  virtual void StartIme() {};
+  virtual void StartIme() {}
 
   // Synthesize a fake window handle for the plug-in to identify the instance
   // to the browser, allowing mapping to a surface for hardware accelleration
   // of plug-in content. The browser generates the handle which is then set on
   // the plug-in. |opaque| indicates whether the content should be treated as
   // opaque or translucent.
   // TODO(stuartmorgan): Move this into WebPluginProxy.
   virtual void BindFakePluginWindowHandle(bool opaque) {}
 
   // Returns the accelerated surface abstraction for accelerated plugins.
@@ skipping 23 matching lines @@
   virtual void DidFinishLoading() = 0;
   virtual void DidFail() = 0;
   virtual bool IsMultiByteResponseExpected() = 0;
   virtual int ResourceId() = 0;
 };
 
 }  // namespace npapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_H_