Remove the old type system for proxied resources. These were no longer being used.

ppapi/proxy/ppb_font_proxy.cc

 // 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.
 
 #include "ppapi/proxy/ppb_font_proxy.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
@@ skipping 100 matching lines @@
   font_forwarding_.reset(result);
 }
 
 Font::~Font() {
 }
 
 ppapi::thunk::PPB_Font_API* Font::AsPPB_Font_API() {
   return this;
 }
 
-Font* Font::AsFont() {
-  return this;
-}
-
 PP_Bool Font::Describe(PP_FontDescription_Dev* description,
                        PP_FontMetrics_Dev* metrics) {
   TRACE_EVENT0("ppapi proxy", "Font::Describe");
   std::string face;
   PP_Bool result = PP_FALSE;
   RunOnWebKitThread(base::Bind(&WebKitForwarding::Font::Describe,
                                base::Unretained(font_forwarding_.get()),
                                &webkit_event_, description, &face, metrics,
                                &result));
 
@@ skipping 83 matching lines @@
   return result;
 }
 
 void Font::RunOnWebKitThread(const base::Closure& task) {
   GetDispatcher()->PostToWebKitThread(FROM_HERE, task);
   webkit_event_.Wait();
 }
 
 }  // namespace proxy
 }  // namespace pp