Cache locally function templates returned by gin::CreateFunctionTemplate

content/renderer/pepper/message_channel.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_
 #define CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_
 
 #include <deque>
 #include <list>
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "content/renderer/pepper/v8_var_converter.h"
 #include "gin/handle.h"
 #include "gin/interceptor.h"
 #include "gin/wrappable.h"
 #include "ppapi/proxy/host_dispatcher.h"
 #include "ppapi/shared_impl/resource.h"
 #include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
+#include "v8/include/v8-util.h"
 #include "v8/include/v8.h"
 
 struct PP_Var;
 
 namespace gin {
 class Arguments;
 }  // namespace gin
 
 namespace ppapi {
 class ScopedPPVar;
@@ skipping 104 matching lines @@
   void DrainCompletedPluginMessages();
   // Drain the queue of messages that are going to JavaScript.
   void DrainJSMessageQueue();
   // PostTask to call DrainJSMessageQueue() soon. Use this when you want to
   // send the messages, but can't immediately (e.g., because the instance is
   // not ready or JavaScript is on the stack).
   void DrainJSMessageQueueSoon();
 
   void UnregisterSyncMessageStatusObserver();
 
+  v8::Local<v8::FunctionTemplate> GetFunctionTemplate(
+      v8::Isolate* isolate,
+      const std::string& name,
+      void (MessageChannel::*memberFuncPtr)(gin::Arguments* args));
+
   PepperPluginInstanceImpl* instance_;
 
   // We pass all non-postMessage calls through to the passthrough_object_.
   // This way, a plugin can use PPB_Class or PPP_Class_Deprecated and also
   // postMessage.  This is necessary to support backwards-compatibility, and
   // also trusted plugins for which we will continue to support synchronous
   // scripting.
   v8::Persistent<v8::Object> passthrough_object_;
 
   enum MessageQueueState {
@@ skipping 24 matching lines @@
   MessageQueueState plugin_message_queue_state_;
 
   std::map<std::string, ppapi::ScopedPPVar> internal_named_properties_;
 
   V8VarConverter var_converter_;
 
   // A callback to invoke at shutdown to ensure we unregister ourselves as
   // Observers for sync messages.
   base::Closure unregister_observer_callback_;
 
+  v8::StdPersistentValueMap<std::string, v8::FunctionTemplate> template_cache_;
+
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<MessageChannel> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageChannel);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_MESSAGE_CHANNEL_H_