Switch Sky to pointer events

sky/engine/public/platform/WebInputEvent.h

 /*
  * Copyright (C) 2009 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 169 matching lines @@
         IsLastInputEventForCurrentVSync = 1 << 13,
     };
 
     static const int InputModifiers = ShiftKey | ControlKey | AltKey | MetaKey;
 
     double timeStampSeconds; // Seconds since epoch.
     unsigned size; // The size of this structure, for serialization.
     Type type;
     int modifiers;
 
+    static bool isPointerEventType(int type)
+    {
+        return type == PointerDown ||

[ojan, 2015/01/23 10:23:55]

Probably premature optimization, but we could save two branches here by doing
range checks type >= PointerDown || type <= PointerCancel.

[abarth-chromium, 2015/01/23 16:51:33]

Ok.  That's what the other similar functions do.

+               type == PointerMove ||
+               type == PointerUp ||
+               type == PointerCancel;
+    }
+
     // Returns true if the WebInputEvent |type| is a mouse event.
     static bool isMouseEventType(int type)
     {
         return MouseTypeFirst <= type && type <= MouseTypeLast;
     }
 
     // Returns true if the WebInputEvent |type| is a keyboard event.
     static bool isKeyboardEventType(int type)
     {
         return KeyboardTypeFirst <= type && type <= KeyboardTypeLast;
@@ skipping 349 matching lines @@
         , cancelable(true)
     {
     }
 };
 
 #pragma pack(pop)
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_PUBLIC_PLATFORM_WEBINPUTEVENT_H_