Improve switch between gestures and touch mode when kEnableTouchEvents

content/browser/renderer_host/render_widget_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 734 matching lines @@
   void ProcessKeyboardEventAck(int type, bool processed);
 
   // Called by OnMsgInputEventAck() to process a wheel event ack message.
   // This could result in a task being posted to allow additional wheel
   // input messages to be coalesced.
   void ProcessWheelAck(bool processed);
 
   // Called on OnMsgInputEventAck() to process a touch event ack message.
   // This can result in a gesture event being generated and sent back to the
   // renderer.
-  void ProcessTouchAck(bool processed);
+  void ProcessTouchAck(int type, bool processed);

[jam, 2012/03/02 00:15:14]

the ints in the code are confusing, why not pass WebKit::WebInputEvent::Type?

 
   // True if renderer accessibility is enabled. This should only be set when a
   // screenreader is detected as it can potentially slow down Chrome.
   bool renderer_accessible_;
 
   // Stores random bits of data for others to associate with this object.
   base::PropertyBag property_bag_;
 
   // The ID of the corresponding object in the Renderer Instance.
   int routing_id_;
@@ skipping 133 matching lines @@
   // then touch events are sent to the renderer. Otherwise, the touch events are
   // not sent to the renderer.
   bool has_touch_handler_;
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_