Return primary display if out of bounds point or NULL ponter is passed to gfx::Screen::GeDisplayNea

ash/display/multi_display_manager.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_MULTI_DISPLAY_MANAGER_H_
 #define ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 46 matching lines @@
   bool IsActiveDisplay(const gfx::Display& display) const;
 
   // True if there is an internal display.
   bool HasInternalDisplay() const;
 
   bool IsInternalDisplayId(int64 id) const;
 
   bool UpdateWorkAreaOfDisplayNearestWindow(const aura::Window* window,
                                             const gfx::Insets& insets);
 
+  // Returns display for given |id|;
+  const gfx::Display& GetDisplayForId(int64 id) const;
+
   // Finds the display that contains |point| in screeen coordinates.
   // Returns invalid display if there is no display that can satisfy
   // the condition.
   const gfx::Display& FindDisplayContainingPoint(
       const gfx::Point& point_in_screen) const;
 
   // DisplayManager overrides:
   virtual void OnNativeDisplaysChanged(
       const std::vector<gfx::Display>& displays) OVERRIDE;
   virtual aura::RootWindow* CreateRootWindowForDisplay(
@@ skipping 55 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(MultiDisplayManager);
 };
 
 extern const aura::WindowProperty<int64>* const kDisplayIdKey;
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_