Added entry points to view/View to dispatch and process TouchEvents.

views/event.h

 // Copyright (c) 2006-2008 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 VIEWS_EVENT_H_
 #define VIEWS_EVENT_H_
 #pragma once
 
 #include "app/keyboard_codes.h"
 #include "base/basictypes.h"
@@ skipping 272 matching lines @@
   // If from / to views are provided, the model location will be converted
   // from 'from' coordinate system to 'to' coordinate system.
   TouchEvent(const TouchEvent& model, View* from, View* to);
 
   // Return the touch point for this event.
   bool identity() const {
     return touch_id_;
   }
 
  private:
-  // The identity (typically finger) of the touch.
+  // The identity (typically finger) of the touch starting at 0 and incrementing
+  // for each separable additional touch that the hardware can detect.
   const int touch_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchEvent);
 };
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // KeyEvent class
 //
@@ skipping 96 matching lines @@
  private:
   const OSExchangeData& data_;
   int source_operations_;
 
   DISALLOW_COPY_AND_ASSIGN(DropTargetEvent);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_EVENT_H_