use enum to specify deviceSource for fling animation

public/web/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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebInputEvent_h
 #define WebInputEvent_h
 
 #include "../platform/WebCommon.h"
+#include "../platform/WebGestureDevice.h"
 #include "../platform/WebRect.h"
 #include "WebTouchPoint.h"
 
 #include <string.h>
 
 namespace blink {
 
 // The classes defined in this file are intended to be used with
 // WebWidget's handleInputEvent method.  These event types are cross-
 // platform and correspond closely to WebCore's Platform*Event classes.
@@ skipping 365 matching lines @@
 public:
     enum SourceDevice {
         Touchpad,
         Touchscreen,
     };
 
     int x;
     int y;
     int globalX;
     int globalY;
-    SourceDevice sourceDevice;
+    // TODO(rjkroege): Restore typing once chromium side lands
+    // (http://crbug.com/343327)
+    int sourceDevice;
 
     union {
         // Tap information must be set for GestureTap, GestureTapUnconfirmed,
         // and GestureDoubleTap events.
         struct {
             int tapCount;
             float width;
             float height;
         } tap;
 
@@ skipping 85 matching lines @@
         , cancelable(true)
     {
     }
 };
 
 #pragma pack(pop)
 
 } // namespace blink
 
 #endif