Remove setting for disabling cc touch hit testing.

Source/core/page/scrolling/ScrollingCoordinator.cpp

 /*
  * Copyright (C) 2011 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 80 matching lines @@
     , m_shouldScrollOnMainThreadDirty(false)
     , m_wasFrameScrollable(false)
     , m_lastMainThreadScrollingReasons(0)
 {
 }
 
 ScrollingCoordinator::~ScrollingCoordinator()
 {
 }
 
-bool ScrollingCoordinator::touchHitTestingEnabled() const
-{
-    if (!m_page->mainFrame()->isLocalFrame())
-        return false;
-    RenderView* contentRenderer = m_page->deprecatedLocalMainFrame()->contentRenderer();
-    Settings* settings = m_page->mainFrame()->settings();
-    return RuntimeEnabledFeatures::touchEnabled() && settings->compositorTouchHitTesting() && contentRenderer && contentRenderer->usesCompositing();
-}
-
 void ScrollingCoordinator::setShouldHandleScrollGestureOnMainThreadRegion(const Region& region)
 {
     if (!m_page->mainFrame()->isLocalFrame())
         return;
     if (WebLayer* scrollLayer = toWebLayer(m_page->deprecatedLocalMainFrame()->view()->layerForScrolling())) {
         Vector<IntRect> rects = region.rects();
         WebVector<WebRect> webRects(rects.size());
         for (size_t i = 0; i < rects.size(); ++i)
             webRects[i] = rects[i];
         scrollLayer->setNonFastScrollableRegion(webRects);
@@ skipping 399 matching lines @@
     geometryMap.pushMappingsToAncestor(rootLayer, 0);
     LayerFrameMap layerChildFrameMap;
     makeLayerChildFrameMap(mainFrame, &layerChildFrameMap);
     projectRectsToGraphicsLayerSpaceRecursive(rootLayer, layerRects, graphicsRects, geometryMap, layersWithRects, layerChildFrameMap);
 }
 
 void ScrollingCoordinator::updateTouchEventTargetRectsIfNeeded()
 {
     TRACE_EVENT0("input", "ScrollingCoordinator::updateTouchEventTargetRectsIfNeeded");
 
-    if (!touchHitTestingEnabled())
+    if (!RuntimeEnabledFeatures::touchEnabled())
         return;
 
     LayerHitTestRects touchEventTargetRects;
     computeTouchEventTargetRects(touchEventTargetRects);
     setTouchEventTargetRects(touchEventTargetRects);
 }
 
 void ScrollingCoordinator::reset()
 {
     for (ScrollbarMap::iterator it = m_horizontalScrollbars.begin(); it != m_horizontalScrollbars.end(); ++it)
@@ skipping 43 matching lines @@
         const GraphicsLayer* graphicsLayer = iter->key;
         WebVector<WebRect> webRects(iter->value.size());
         for (size_t i = 0; i < iter->value.size(); ++i)
             webRects[i] = enclosingIntRect(iter->value[i]);
         graphicsLayer->platformLayer()->setTouchEventHandlerRegion(webRects);
     }
 }
 
 void ScrollingCoordinator::touchEventTargetRectsDidChange()
 {
-    if (!touchHitTestingEnabled())
+    if (!RuntimeEnabledFeatures::touchEnabled())
         return;
 
     // Wait until after layout to update.
     if (!m_page->deprecatedLocalMainFrame()->view() || m_page->deprecatedLocalMainFrame()->view()->needsLayout())
         return;
 
     // FIXME: scheduleAnimation() is just a method of forcing the compositor to realize that it
     // needs to commit here. We should expose a cleaner API for this.
     RenderView* renderView = m_page->deprecatedLocalMainFrame()->contentRenderer();
     if (renderView && renderView->compositor() && renderView->compositor()->staleInCompositingMode())
@@ skipping 211 matching lines @@
                 renderer->computeLayerHitTestRects(rects);
             }
         }
     }
 
 }
 
 void ScrollingCoordinator::computeTouchEventTargetRects(LayerHitTestRects& rects)
 {
     TRACE_EVENT0("input", "ScrollingCoordinator::computeTouchEventTargetRects");
-    ASSERT(touchHitTestingEnabled());
+    ASSERT(RuntimeEnabledFeatures::touchEnabled());
 
     Document* document = m_page->deprecatedLocalMainFrame()->document();
     if (!document || !document->view())
         return;
 
     accumulateDocumentTouchEventTargetRects(rects, document);
 }
 
 void ScrollingCoordinator::frameViewHasSlowRepaintObjectsDidChange(FrameView* frameView)
 {
@@ skipping 123 matching lines @@
     bool frameIsScrollable = frameView && frameView->isScrollable();
     if (frameIsScrollable != m_wasFrameScrollable)
         return true;
 
     if (WebLayer* scrollLayer = frameView ? toWebLayer(frameView->layerForScrolling()) : 0)
         return blink::WebSize(frameView->contentsSize()) != scrollLayer->bounds();
     return false;
 }
 
 } // namespace WebCore