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

webkit/plugins/ppapi/ppb_font_impl.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_PPAPI_PPB_FONT_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPB_FONT_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/shared_impl/function_group_base.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/shared_impl/webkit_forwarding.h"
 #include "ppapi/thunk/ppb_font_api.h"
 
-namespace WebKit {
-class WebFont;
-}
-
 namespace webkit {
 namespace ppapi {
 
 class PluginInstance;
 
 class PPB_Font_Impl : public ::ppapi::Resource,
                       public ::ppapi::thunk::PPB_Font_API {
  public:
   virtual ~PPB_Font_Impl();
 
@@ skipping 22 matching lines @@
   PPB_Font_Impl(PP_Instance instance, const PP_FontDescription_Dev& desc);
 
   scoped_ptr< ::ppapi::WebKitForwarding::Font> font_forwarding_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Font_Impl);
 };
 
 class PPB_Font_FunctionImpl : public ::ppapi::FunctionGroupBase,
                               public ::ppapi::thunk::PPB_Font_FunctionAPI {
  public:
-  PPB_Font_FunctionImpl(PluginInstance* instance);
+  explicit PPB_Font_FunctionImpl(PluginInstance* instance);
   virtual ~PPB_Font_FunctionImpl();
 
   // FunctionGroupBase overrides.
   virtual ::ppapi::thunk::PPB_Font_FunctionAPI* AsFont_FunctionAPI();
 
   // PPB_Font_FunctionAPI implementation.
   virtual PP_Var GetFontFamilies(PP_Instance instance) OVERRIDE;
 
  private:
   PluginInstance* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Font_FunctionImpl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPB_FONT_IMPL_H_