Don't move cursor location when rotation /ui scaling has changed

ash/display/display_controller.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 ASH_DISPLAY_DISPLAY_CONTROLLER_H_
 #define ASH_DISPLAY_DISPLAY_CONTROLLER_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 173 matching lines @@
 
   // Returns the display layout used for current displays.
   DisplayLayout GetCurrentDisplayLayout() const;
 
   // Returns the current display pair.
   DisplayIdPair GetCurrentDisplayIdPair() const;
 
   // Returns the display layout registered for the given display id |pair|.
   DisplayLayout GetRegisteredDisplayLayout(const DisplayIdPair& pair) const;
 
+  // Checks if the mouse pointer is on one of displays, and moves to
+  // the center of the nearest display if it's outside of all displays.
+  void EnsurePointerInDisplays();
+
+  gfx::Point GetNativeMouseCursorLocation() const;
+
+  // Update the current cursor image that is sutable for the given
+  // |point_in_native|.
+  void UpdateMouseCursor(const gfx::Point& point_in_native);
+
   // aura::DisplayObserver overrides:
   virtual void OnDisplayBoundsChanged(
       const gfx::Display& display) OVERRIDE;
   virtual void OnDisplayAdded(const gfx::Display& display) OVERRIDE;
   virtual void OnDisplayRemoved(const gfx::Display& display) OVERRIDE;
 
  private:
   friend class internal::DisplayManager;
 
   // Create a root window for given |display|.
@@ skipping 12 matching lines @@
                                  const DisplayLayout& layout);
 
   void RegisterLayoutForDisplayIdPairInternal(
       int64 id1,
       int64 id2,
       const DisplayLayout& layout,
       bool override);
 
   void OnFadeOutForSwapDisplayFinished();
 
+  bool in_bootstrap() const { return in_bootstrap_; }
+
   class DisplayChangeLimiter {
    public:
     DisplayChangeLimiter();
 
     // Sets how long the throttling should last.
     void SetThrottleTimeout(int64 throttle_ms);
 
     bool IsThrottled() const;
 
    private:
@@ skipping 15 matching lines @@
 
   // Display layout per pair of devices.
   std::map<DisplayIdPair, DisplayLayout> paired_layouts_;
 
   ObserverList<Observer> observers_;
 
   // Store the primary root window temporarily while replacing
   // display.
   aura::RootWindow* primary_root_window_for_replace_;
 
+  bool in_bootstrap_;
+
   DISALLOW_COPY_AND_ASSIGN(DisplayController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_DISPLAY_CONTROLLER_H_