Remove HistogramSupport abstraction layer

Source/bindings/v8/V8WindowShell.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 36 matching lines @@
 #include "bindings/v8/V8PerContextData.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/frame/ContentSecurityPolicy.h"
 #include "core/frame/Frame.h"
 #include "core/page/Page.h"
-#include "core/platform/HistogramSupport.h"
 #include "platform/TraceEvent.h"
+#include "public/platform/Platform.h"
 #include "weborigin/SecurityOrigin.h"
 #include "wtf/Assertions.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/StringExtras.h"
 #include "wtf/text/CString.h"
 #include <algorithm>
 #include <utility>
 #include <v8-debug.h>
 #include <v8.h>
 
@@ skipping 221 matching lines @@
     }
     v8::ExtensionConfiguration extensionConfiguration(index, extensionNames.get());
 
     v8::HandleScope handleScope(m_isolate);
     m_context.set(m_isolate, v8::Context::New(m_isolate, &extensionConfiguration, globalTemplate, m_global.newLocal(m_isolate)));
 
     double contextCreationDurationInMilliseconds = (currentTime() - contextCreationStartInSeconds) * 1000;
     const char* histogramName = "WebCore.V8WindowShell.createContext.MainWorld";
     if (!m_world->isMainWorld())
         histogramName = "WebCore.V8WindowShell.createContext.IsolatedWorld";
-    HistogramSupport::histogramCustomCounts(histogramName, contextCreationDurationInMilliseconds, 0, 10000, 50);
+    WebKit::Platform::current()->histogramCustomCounts(histogramName, contextCreationDurationInMilliseconds, 0, 10000, 50);
 }
 
 bool V8WindowShell::installDOMWindow()
 {
     DOMWrapperWorld::setInitializingWindow(true);
     DOMWindow* window = m_frame->domWindow();
     v8::Local<v8::Object> windowWrapper = V8ObjectConstructor::newInstance(V8PerContextData::from(m_context.newLocal(m_isolate))->constructorForType(&V8Window::wrapperTypeInfo));
     if (windowWrapper.IsEmpty())
         return false;
 
@@ skipping 191 matching lines @@
 void V8WindowShell::updateSecurityOrigin()
 {
     ASSERT(m_world->isMainWorld());
     if (m_context.isEmpty())
         return;
     v8::HandleScope handleScope(m_isolate);
     setSecurityToken();
 }
 
 } // WebCore