Invalidate touchEventTargetRects in ScrollingCoordinator when toggling touch emulation.

third_party/WebKit/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 3850 matching lines @@
 void WebViewImpl::enableDeviceEmulation(const WebDeviceEmulationParams& params)
 {
     m_devToolsEmulator->enableDeviceEmulation(params);
 }
 
 void WebViewImpl::disableDeviceEmulation()
 {
     m_devToolsEmulator->disableDeviceEmulation();
 }
 
+void WebViewImpl::setTouchEventEmulationEnabled(bool enabled)
+{
+    m_devToolsEmulator->setTouchEventEmulationEnabled(enabled);
+}
+
 WebAXObject WebViewImpl::accessibilityObject()
 {
     if (!mainFrameImpl())
         return WebAXObject();
 
     Document* document = mainFrameImpl()->frame()->document();
     return WebAXObject(toAXObjectCacheImpl(document->axObjectCache())->root());
 }
 
 void WebViewImpl::performCustomContextMenuAction(unsigned action)
@@ skipping 675 matching lines @@
 {
     // TODO(oshima): Investigate if this should return the ScreenInfo's scale factor rather than
     // page's scale factor, which can be 1 in use-zoom-for-dsf mode.
     if (!page())
         return 1;
 
     return page()->deviceScaleFactor();
 }
 
 } // namespace blink