[Bindings][UMA] Split user metrics for window proxy initialization

third_party/WebKit/Source/bindings/core/v8/RemoteWindowProxy.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 51 matching lines @@
   }
 
   DCHECK(m_lifecycle == Lifecycle::ContextInitialized);
   m_lifecycle = Lifecycle::ContextDetached;
 }
 
 void RemoteWindowProxy::initialize() {
   TRACE_EVENT1("v8", "RemoteWindowProxy::initialize", "isMainWindow",
                frame()->isMainFrame());
   SCOPED_BLINK_UMA_HISTOGRAM_TIMER(
-      frame()->isMainFrame() ? "Blink.Binding.InitializeMainWindowProxy"
-                             : "Blink.Binding.InitializeNonMainWindowProxy");
+      frame()->isMainFrame()
+          ? "Blink.Binding.InitializeMainRemoteWindowProxy"
+          : "Blink.Binding.InitializeNonMainRemoteWindowProxy");
 
   ScriptForbiddenScope::AllowUserAgentScript allowScript;
 
   v8::HandleScope handleScope(isolate());
   createContext();
   setupWindowPrototypeChain();
 }
 
 void RemoteWindowProxy::createContext() {
   // Create a new v8::Context with the window object as the global object
@@ skipping 38 matching lines @@
 
   // The global object, aka window wrapper object.
   v8::Local<v8::Object> windowWrapper =
       globalProxy->GetPrototype().As<v8::Object>();
   v8::Local<v8::Object> associatedWrapper =
       associateWithWrapper(window, wrapperTypeInfo, windowWrapper);
   DCHECK(associatedWrapper == windowWrapper);
 }
 
 }  // namespace blink