Ensure on Windows AURA that the cursor stays within the bounds of the window during a LockMouse ope…

ui/aura/root_window.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_ROOT_WINDOW_H_
 #define UI_AURA_ROOT_WINDOW_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 118 matching lines @@
 
   // Moves the cursor to the specified location relative to the root window.
   virtual void MoveCursorTo(const gfx::Point& location) OVERRIDE;
 
   // Moves the cursor to the |host_location| given in host coordinates.
   void MoveCursorToHostLocation(const gfx::Point& host_location);
 
   // Clips the cursor movement to the root_window.
   bool ConfineCursorToWindow();
 
+  // Restores the cursor movement beyond the root window.
+  void UnConfineCursor();

[sky, 2013/10/30 22:02:53]

UnconfigCursor.

How did the old code unconfine?

[ananta, 2013/10/30 22:11:41]

The only consumer of ConfineCursorToWindow is the ash display controller.
UnConfineCursor was performed internally by the RootWindowHostX11 class.

+
   // Draw the damage_rect.
   void ScheduleRedrawRect(const gfx::Rect& damage_rect);
 
   // Returns a target window for the given gesture event.
   Window* GetGestureTarget(ui::GestureEvent* event);
 
   // Handles a gesture event. Returns true if handled. Unlike the other
   // event-dispatching function (e.g. for touch/mouse/keyboard events), gesture
   // events are dispatched from GestureRecognizer instead of RootWindowHost.
   bool DispatchGestureEvent(ui::GestureEvent* event);
@@ skipping 260 matching lines @@
   base::WeakPtrFactory<RootWindow> held_event_factory_;
 
   base::WeakPtrFactory<RootWindow> repostable_event_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_