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

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

Index: third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
index 049f2df7203fd461c12fcf92f45ffd3b7ea02098..139ed88755d5dc6b65b9f7e211821b49bc008987 100644
--- a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.cpp
@@ -112,8 +112,9 @@ 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;