use enum to specify deviceSource for fling animation.

content/browser/renderer_host/web_input_event_aura.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/web_input_event_aura.h"
 
 #include "content/browser/renderer_host/ui_events_helper.h"
 #include "ui/aura/window.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
@@ skipping 159 matching lines @@
     case ui::ET_SCROLL_FLING_CANCEL:
       webkit_event.type = blink::WebInputEvent::GestureFlingCancel;
       break;
     case ui::ET_SCROLL:
       NOTREACHED() << "Invalid gesture type: " << event->type();
       break;
     default:
       NOTREACHED() << "Unknown gesture type: " << event->type();
   }
 
-  webkit_event.sourceDevice = blink::WebGestureEvent::Touchpad;
+  webkit_event.sourceDevice = blink::WebGestureDeviceTouchpad;
   webkit_event.modifiers = EventFlagsToWebEventModifiers(event->flags());
   webkit_event.timeStampSeconds = event->time_stamp().InSecondsF();
   return webkit_event;
 }
 
 #endif
 
 blink::WebMouseEvent MakeWebMouseEventFromAuraEvent(
     ui::MouseEvent* event);
 blink::WebMouseWheelEvent MakeWebMouseWheelEventFromAuraEvent(
@@ skipping 151 matching lines @@
   gesture_event.globalY = root_point.y();
 
   return gesture_event;
 }
 
 blink::WebGestureEvent MakeWebGestureEventFlingCancel() {
   blink::WebGestureEvent gesture_event;
 
   // All other fields are ignored on a GestureFlingCancel event.
   gesture_event.type = blink::WebInputEvent::GestureFlingCancel;
-  gesture_event.sourceDevice = blink::WebGestureEvent::Touchpad;
+  gesture_event.sourceDevice = blink::WebGestureDeviceTouchpad;
   return gesture_event;
 }
 
 blink::WebMouseEvent MakeWebMouseEventFromAuraEvent(ui::MouseEvent* event) {
   blink::WebMouseEvent webkit_event;
 
   webkit_event.modifiers = EventFlagsToWebEventModifiers(event->flags());
   webkit_event.timeStampSeconds = event->time_stamp().InSecondsF();
 
   webkit_event.button = blink::WebMouseEvent::ButtonNone;
@@ skipping 44 matching lines @@
     webkit_event.deltaY = event->y_offset();
   }
 
   webkit_event.wheelTicksX = webkit_event.deltaX / kPixelsPerTick;
   webkit_event.wheelTicksY = webkit_event.deltaY / kPixelsPerTick;
 
   return webkit_event;
 }
 
 }  // namespace content