use enum to specify deviceSource for fling animation.

content/browser/frame_host/render_widget_host_view_guest.cc

 // Copyright 2014 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 "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/frame_host/render_widget_host_view_guest.h"
@@ skipping 19 matching lines @@
 
 namespace content {
 
 namespace {
 
 #if defined(USE_AURA)
 blink::WebGestureEvent CreateFlingCancelEvent(double time_stamp) {
   blink::WebGestureEvent gesture_event;
   gesture_event.timeStampSeconds = time_stamp;
   gesture_event.type = blink::WebGestureEvent::GestureFlingCancel;
-  gesture_event.sourceDevice = blink::WebGestureEvent::Touchscreen;
+  gesture_event.sourceDevice = blink::WebGestureDeviceTouchpad;
   return gesture_event;
 }
 #endif  // defined(USE_AURA)
 
 }  // namespace
 
 RenderWidgetHostViewGuest::RenderWidgetHostViewGuest(
     RenderWidgetHost* widget_host,
     BrowserPluginGuest* guest,
     RenderWidgetHostViewBase* platform_view)
@@ skipping 519 matching lines @@
   return SkBitmap::kARGB_8888_Config;
 }
 
 RenderWidgetHostViewBase*
 RenderWidgetHostViewGuest::GetGuestRenderWidgetHostView() const {
   return static_cast<RenderWidgetHostViewBase*>(
       guest_->GetEmbedderRenderWidgetHostView());
 }
 
 }  // namespace content