Remove HistogramSupport abstraction layer

Source/core/html/HTMLCanvasElement.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 25 matching lines @@
 #include "bindings/v8/ScriptController.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/html/ImageData.h"
 #include "core/html/canvas/Canvas2DContextAttributes.h"
 #include "core/html/canvas/CanvasRenderingContext2D.h"
 #include "core/html/canvas/WebGLContextAttributes.h"
 #include "core/html/canvas/WebGLRenderingContext.h"
 #include "core/frame/Frame.h"
 #include "core/page/Settings.h"
-#include "core/platform/HistogramSupport.h"
 #include "core/platform/MIMETypeRegistry.h"
 #include "core/platform/graphics/GraphicsContextStateSaver.h"
 #include "core/platform/graphics/ImageBuffer.h"
 #include "core/rendering/RenderHTMLCanvas.h"
 #include "public/platform/Platform.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
@@ skipping 105 matching lines @@
         ContextTypeCount,
     };
 
     // FIXME - The code depends on the context not going away once created, to prevent JS from
     // seeing a dangling pointer. So for now we will disallow the context from being changed
     // once it is created.
     if (type == "2d") {
         if (m_context && !m_context->is2d())
             return 0;
         if (!m_context) {
-            HistogramSupport::histogramEnumeration("Canvas.ContextType", Context2d, ContextTypeCount);
+            WebKit::Platform::current()->histogramEnumeration("Canvas.ContextType", Context2d, ContextTypeCount);
             m_context = CanvasRenderingContext2D::create(this, static_cast<Canvas2DContextAttributes*>(attrs), document().inQuirksMode());
             if (m_context)
                 scheduleLayerUpdate();
         }
         return m_context.get();
     }
 
     Settings* settings = document().settings();
     if (settings && settings->webGLEnabled()) {
         // Accept the legacy "webkit-3d" name as well as the provisional "experimental-webgl" name.
         // Now that WebGL is ratified, we will also accept "webgl" as the context name in Chrome.
         ContextType contextType;
         bool is3dContext = true;
         if (type == "webkit-3d")
             contextType = ContextWebkit3d;
         else if (type == "experimental-webgl")
             contextType = ContextExperimentalWebgl;
         else if (type == "webgl")
             contextType = ContextWebgl;
         else
             is3dContext = false;
 
         if (is3dContext) {
             if (m_context && !m_context->is3d())
                 return 0;
             if (!m_context) {
-                HistogramSupport::histogramEnumeration("Canvas.ContextType", contextType, ContextTypeCount);
+                WebKit::Platform::current()->histogramEnumeration("Canvas.ContextType", contextType, ContextTypeCount);
                 m_context = WebGLRenderingContext::create(this, static_cast<WebGLContextAttributes*>(attrs));
                 if (m_context)
                     scheduleLayerUpdate();
             }
             return m_context.get();
         }
     }
     return 0;
 }
 
@@ skipping 373 matching lines @@
     FloatSize unscaledSize = size();
     FloatSize deviceSize = convertLogicalToDevice(unscaledSize);
     IntSize size(deviceSize.width(), deviceSize.height());
     AffineTransform transform;
     if (size.width() && size.height())
         transform.scaleNonUniform(size.width() / unscaledSize.width(), size.height() / unscaledSize.height());
     return m_imageBuffer->baseTransform() * transform;
 }
 
 }