Use Local instead of Handle in src/content/*

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 3445077009c561733018f79fc1056453373b7655..cac8f358c54da5dadab3854e9150e3298078f965 100644
--- a/content/renderer/pepper/message_channel.h
+++ b/content/renderer/pepper/message_channel.h
@@ -81,7 +81,7 @@ class MessageChannel :
   // related to postMessage. Note that this can be empty; it only gets set if
   // there is a scriptable 'InstanceObject' associated with this channel's
   // instance.
-  void SetPassthroughObject(v8::Handle<v8::Object> passthrough);
+  void SetPassthroughObject(v8::Local<v8::Object> passthrough);
 
   PepperPluginInstanceImpl* instance() { return instance_; }
 
@@ -124,7 +124,7 @@ class MessageChannel :
 
   PluginObject* GetPluginObject(v8::Isolate* isolate);
 
-  void EnqueuePluginMessage(v8::Handle<v8::Value> v8_value);
+  void EnqueuePluginMessage(v8::Local<v8::Value> v8_value);
 
   void FromV8ValueComplete(VarConversionResult* result_holder,
                            const ppapi::ScopedPPVar& result_var,