Convert most remaining resources to use the API/thunk system. The significant

webkit/plugins/ppapi/ppb_proxy_impl.cc

Index: webkit/plugins/ppapi/ppb_proxy_impl.cc
===================================================================
--- webkit/plugins/ppapi/ppb_proxy_impl.cc	(revision 89672)
+++ webkit/plugins/ppapi/ppb_proxy_impl.cc	(working copy)
@@ -5,12 +5,17 @@
 #include "webkit/plugins/ppapi/ppb_proxy_impl.h"
 
 #include "ppapi/c/private/ppb_proxy_private.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_image_data_api.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 #include "webkit/plugins/ppapi/ppb_url_loader_impl.h"
 #include "webkit/plugins/ppapi/resource.h"
 #include "webkit/plugins/ppapi/resource_tracker.h"
 
+using ppapi::thunk::EnterResource;
+using ppapi::thunk::PPB_URLLoader_API;
+
 namespace webkit {
 namespace ppapi {
 
@@ -37,11 +42,10 @@
 }
 
 int32_t GetURLLoaderBufferedBytes(PP_Resource url_loader) {
- scoped_refptr<PPB_URLLoader_Impl> loader(
-      Resource::GetAs<PPB_URLLoader_Impl>(url_loader));
-  if (!loader)
-    return 0;
-  return loader->buffer_size();
+  EnterResource<PPB_URLLoader_API> enter(url_loader, true);
+  if (enter.succeeded())
+    return static_cast<PPB_URLLoader_Impl*>(enter.object())->buffer_size();
+  return 0;
 }
 
 void AddRefModule(PP_Module module) {