Remove PlatformTouchEvent/Point and use WebTouchEvent/Point instead

third_party/WebKit/public/platform/WebTouchPoint.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 37 matching lines @@
         radiusY(0),
         rotationAngle(0) {}
 
   enum State {
     StateUndefined,
     StateReleased,
     StatePressed,
     StateMoved,
     StateStationary,
     StateCancelled,
+    StateMax = StateCancelled
   };
 
   State state;
 
   // TODO(e_hakkinen): Move position fields to WebPointerProperties.
   WebFloatPoint screenPosition;
   WebFloatPoint position;
 
   float radiusX;
   float radiusY;
   float rotationAngle;
 };
 
 }  // namespace blink
 
 #endif