Cache locally function templates returned by gin::CreateFunctionTemplate

content/renderer/pepper/message_channel.h

Index: content/renderer/pepper/message_channel.h
diff --git a/content/renderer/pepper/message_channel.h b/content/renderer/pepper/message_channel.h
index 4889777ed76de51152bb7b6a3030fe9660ac993e..c3776e922169787c92fada71ef436221917f5d24 100644
--- a/content/renderer/pepper/message_channel.h
+++ b/content/renderer/pepper/message_channel.h
@@ -18,6 +18,7 @@
 #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;
@@ -142,6 +143,11 @@ class MessageChannel :
 
   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_.
@@ -186,6 +192,8 @@ class MessageChannel :
   // 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_;