Invalidate touchEventTargetRects in ScrollingCoordinator when toggling touch emulation.

third_party/WebKit/Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 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 308 matching lines @@
 
     // Returns the page object associated with this view. This may be null when
     // the page is shutting down, but will be valid at all other times.
     Page* page() const
     {
         return m_page.get();
     }
 
     WebDevToolsAgentImpl* mainFrameDevToolsAgentImpl();
 
+    void setTouchEventEmulationEnabled(bool);
+
     DevToolsEmulator* devToolsEmulator() const
     {
         return m_devToolsEmulator.get();
     }
 
     // Returns the main frame associated with this view. This may be null when
     // the page is shutting down, but will be valid at all other times.
     WebLocalFrameImpl* mainFrameImpl() const;
 
     // FIXME: Temporary method to accommodate out-of-process frame ancestors;
@@ skipping 417 matching lines @@
     double m_lastFrameTimeMonotonic;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif