Use Local instead of Handle in src/content/*

content/child/webmessageportchannel_impl.cc

Index: content/child/webmessageportchannel_impl.cc
diff --git a/content/child/webmessageportchannel_impl.cc b/content/child/webmessageportchannel_impl.cc
index 86764afb268d47f893c89a85bee919fdf63eb04a..332959f25b32771a5733a28e93f460c0097c631c 100644
--- a/content/child/webmessageportchannel_impl.cc
+++ b/content/child/webmessageportchannel_impl.cc
@@ -153,7 +153,7 @@ void WebMessagePortChannelImpl::postMessage(
   if (send_messages_as_values_) {
     blink::WebSerializedScriptValue serialized_value =
         blink::WebSerializedScriptValue::fromString(message_as_string);
-    v8::Handle<v8::Value> v8_value = serialized_value.deserialize();
+    v8::Local<v8::Value> v8_value = serialized_value.deserialize();
     scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
     converter->SetDateAllowed(true);
     converter->SetRegExpAllowed(true);
@@ -194,7 +194,7 @@ bool WebMessagePortChannelImpl::tryGetMessage(
     scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
     converter->SetDateAllowed(true);
     converter->SetRegExpAllowed(true);
-    v8::Handle<v8::Value> v8_value = converter->ToV8Value(
+    v8::Local<v8::Value> v8_value = converter->ToV8Value(
         data.as_value(), client_->scriptContextForMessageConversion());
     blink::WebSerializedScriptValue serialized_value =
         blink::WebSerializedScriptValue::serialize(v8_value);