Adds switch to disable generating mouse events from touch events and

ui/aura/env.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 UI_AURA_ENV_H_
 #define UI_AURA_ENV_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 27 matching lines @@
   static void DeleteInstance();
 
   void AddObserver(EnvObserver* observer);
   void RemoveObserver(EnvObserver* observer);
 
   bool is_mouse_button_down() const { return mouse_button_flags_ != 0; }
   void set_mouse_button_flags(int mouse_button_flags) {
     mouse_button_flags_ = mouse_button_flags;
   }
 
+  // Whether any touch device is currently down.
+  bool is_touch_down() const { return is_touch_down_; }
+  void set_touch_down(bool value) { is_touch_down_ = value; }
+
   client::StackingClient* stacking_client() { return stacking_client_; }
   void set_stacking_client(client::StackingClient* stacking_client) {
     stacking_client_ = stacking_client;
   }
 
   // Gets/sets MonitorManager. The MonitorManager's ownership is
   // transfered.
   MonitorManager* monitor_manager() { return monitor_manager_.get(); }
   void SetMonitorManager(MonitorManager* monitor_manager);
 
@@ skipping 13 matching lines @@
   // Called by the Window when it is initialized. Notifies observers.
   void NotifyWindowInitialized(Window* window);
 
   ObserverList<EnvObserver> observers_;
 #if !defined(OS_MACOSX)
   scoped_ptr<MessageLoop::Dispatcher> dispatcher_;
 #endif
 
   static Env* instance_;
   int mouse_button_flags_;
+  bool is_touch_down_;
   client::StackingClient* stacking_client_;
   scoped_ptr<MonitorManager> monitor_manager_;
 
 #if defined(USE_X11)
   scoped_ptr<internal::MonitorChangeObserverX11> monitor_change_observer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Env);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ENV_H_