Make the Pepper proxy support in-process font rendering.

ppapi/shared_impl/resource_object_base.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 PPAPI_SHARED_IMPL_RESOURCE_OBJECT_BASE_H_
 #define PPAPI_SHARED_IMPL_RESOURCE_OBJECT_BASE_H_
 
 namespace ppapi {
 
 namespace thunk {
+class PPB_Font_API;
 class PPB_Graphics2D_API;
 class PPB_ImageData_API;
 }
 
 namespace shared_impl {
 
 class ResourceObjectBase {
  public:
 
+  virtual thunk::PPB_Font_API* AsFont_API() { return NULL; }
   virtual thunk::PPB_Graphics2D_API* AsGraphics2D_API() { return NULL; }
   virtual thunk::PPB_ImageData_API* AsImageData_API() { return NULL; }
 
   template <typename T> T* GetAs() { return NULL; }
 };
 
 template<>
+inline thunk::PPB_Font_API* ResourceObjectBase::GetAs() {
+  return AsFont_API();
+}
+template<>
 inline thunk::PPB_Graphics2D_API* ResourceObjectBase::GetAs() {
   return AsGraphics2D_API();
 }
 template<>
 inline thunk::PPB_ImageData_API* ResourceObjectBase::GetAs() {
   return AsImageData_API();
 }
 
 }  // namespace shared_impl
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_RESOURCE_OBJECT_BASE_H_