Delete unused WebViewBenchmarkSupport interface

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 387 matching lines @@
     , m_ignoreInputEvents(false)
     , m_suppressNextKeypressEvent(false)
     , m_imeAcceptEvents(true)
     , m_operationsAllowed(WebDragOperationNone)
     , m_dragOperation(WebDragOperationNone)
     , m_featureSwitchClient(adoptPtr(new ContextFeaturesClientImpl()))
     , m_autofillPopupShowing(false)
     , m_autofillPopup(0)
     , m_isTransparent(false)
     , m_tabsToLinks(false)
-    , m_benchmarkSupport(this)
     , m_layerTreeView(0)
     , m_rootLayer(0)
     , m_rootGraphicsLayer(0)
     , m_graphicsLayerFactory(adoptPtr(new GraphicsLayerFactoryChromium(this)))
     , m_isAcceleratedCompositingActive(false)
     , m_layerTreeViewCommitsDeferred(false)
     , m_compositorCreationFailed(false)
     , m_recreatingGraphicsContext(false)
 #if ENABLE(INPUT_SPEECH)
     , m_speechInputClient(SpeechInputClientImpl::create(client))
@@ skipping 422 matching lines @@
         m_layerTreeView->startPageScaleAnimation(targetPosition, useAnchor, newScale, durationInSeconds);
     }
     return true;
 }
 
 void WebViewImpl::enableFakePageScaleAnimationForTesting(bool enable)
 {
     m_enableFakePageScaleAnimationForTesting = enable;
 }
 
-WebViewBenchmarkSupport* WebViewImpl::benchmarkSupport()
-{
-    return &m_benchmarkSupport;
-}
-
 void WebViewImpl::setShowFPSCounter(bool show)
 {
     if (m_layerTreeView) {
         TRACE_EVENT0("webkit", "WebViewImpl::setShowFPSCounter");
         m_layerTreeView->setShowFPSCounter(show);
     }
     m_showFPSCounter = show;
 }
 
 void WebViewImpl::setShowPaintRects(bool show)
@@ skipping 3258 matching lines @@
 }
 
 bool WebViewImpl::shouldDisableDesktopWorkarounds()
 {
     ViewportArguments arguments = mainFrameImpl()->frame()->document()->viewportArguments();
     return arguments.width == ViewportArguments::ValueDeviceWidth || !arguments.userZoom
         || (arguments.minZoom == arguments.maxZoom && arguments.minZoom != ViewportArguments::ValueAuto);
 }
 
 } // namespace WebKit