Add WebPointerProperties type.

Source/web/WebInputEvent.cpp

 /*
  * 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 29 matching lines @@
 
 struct SameSizeAsWebInputEvent {
     int inputData[5];
 };
 
 struct SameSizeAsWebKeyboardEvent : public SameSizeAsWebInputEvent {
     int keyboardData[14];
 };
 
 struct SameSizeAsWebMouseEvent : public SameSizeAsWebInputEvent {
     int mouseData[10];

[bokan, 2015/07/13 18:45:18]

Actually, shouldn't this have shrunk? Since you removed the 'button' field?

[USE eero AT chromium.org, 2015/07/14 23:44:13]

Yes, mouseData size should be 9 ints, mousePropertiesData size should be 1 int
and pointerPropertiesData size should be 4 ints. But let's just merge all of
them together.

+    int pointerPropertiesData[4];

[Rick Byers, 2015/07/09 00:50:23]

nit: I think it's preferable to just add 4 to the above.  We don't care here
where the size comes from, just the absolute value.

[bokan, 2015/07/13 18:42:22]

Agreed

[USE eero AT chromium.org, 2015/07/14 23:44:13]

Done.

 };
 
 struct SameSizeAsWebMouseWheelEvent : public SameSizeAsWebMouseEvent {
     int mousewheelData[11];
 };
 
 struct SameSizeAsWebGestureEvent : public SameSizeAsWebInputEvent {
     int gestureData[10];
 };
 
@@ skipping 168 matching lines @@
     case VK_RSHIFT:
     case VK_RMENU:
     case VK_RWIN:
         return IsRight;
     default:
         return 0;
     }
 }
 
 } // namespace blink