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

third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.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 94 matching lines @@
       frame()->isMainFrame());
 
   DCHECK(m_lifecycle == Lifecycle::ContextInitialized);
   m_lifecycle = Lifecycle::ContextDetached;
 }
 
 void LocalWindowProxy::initialize() {
   TRACE_EVENT1("v8", "LocalWindowProxy::initialize", "isMainWindow",
                frame()->isMainFrame());
   SCOPED_BLINK_UMA_HISTOGRAM_TIMER(
-      frame()->isMainFrame() ? "Blink.Binding.InitializeMainWindowProxy"
-                             : "Blink.Binding.InitializeNonMainWindowProxy");
+      frame()->isMainFrame()
+          ? "Blink.Binding.InitializeMainLocalWindowProxy"
+          : "Blink.Binding.InitializeNonMainLocalWindowProxy");
 
   ScriptForbiddenScope::AllowUserAgentScript allowScript;
 
   v8::HandleScope handleScope(isolate());
 
   createContext();
 
   ScriptState::Scope scope(m_scriptState.get());
   v8::Local<v8::Context> context = m_scriptState->context();
   if (m_globalProxy.isEmpty()) {
@@ skipping 311 matching lines @@
 
   setSecurityToken(origin);
 }
 
 LocalWindowProxy::LocalWindowProxy(v8::Isolate* isolate,
                                    LocalFrame& frame,
                                    RefPtr<DOMWrapperWorld> world)
     : WindowProxy(isolate, frame, std::move(world)) {}
 
 }  // namespace blink