Implement proxying for FileRef and FileChooser....

webkit/plugins/ppapi/ppb_proxy_impl.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 "webkit/plugins/ppapi/ppb_proxy_impl.h"
 
 #include "ppapi/c/private/ppb_proxy_private.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
+#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
+#include "webkit/plugins/ppapi/resource.h"
 #include "webkit/plugins/ppapi/resource_tracker.h"
 
 namespace webkit {
 namespace ppapi {
 
 namespace {
 
 void PluginCrashed(PP_Module module) {
   PluginModule* plugin_module = ResourceTracker::Get()->GetModule(module);
   if (plugin_module)
     plugin_module->PluginCrashed();
 }
 
+PP_Instance GetInstanceForResource(PP_Resource resource) {
+  scoped_refptr<Resource> obj(ResourceTracker::Get()->GetResource(resource));
+  if (!obj)
+    return 0;
+  return obj->instance()->pp_instance();
+}
+
 const PPB_Proxy_Private ppb_proxy = {
-  &PluginCrashed
+  &PluginCrashed,
+  &GetInstanceForResource
 };
 
 }  // namespace
 
 // static
 const PPB_Proxy_Private* PPB_Proxy_Impl::GetInterface() {
   return &ppb_proxy;
 }
 
 }  // namespace ppapi
 }  // namespace webkit