Restores maximized browser before dragging a tab

ash/wm/window_animations.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_WM_WINDOW_ANIMATIONS_H_
 #define ASH_WM_WINDOW_ANIMATIONS_H_
 
 #include "ash/ash_export.h"
 #include "ui/gfx/transform.h"
 #include "ui/views/corewm/window_animations.h"
@@ skipping 27 matching lines @@
 };
 
 // Amount of time for the cross fade animation.
 extern const int kCrossFadeDurationMS;
 
 // Animate a cross-fade of |window| from its current bounds to |new_bounds|.
 ASH_EXPORT void CrossFadeToBounds(aura::Window* window,
                                   const gfx::Rect& new_bounds);
 
 // Returns the duration of the cross-fade animation based on the |old_bounds|
-// and |new_bounds| of the window.
-ASH_EXPORT base::TimeDelta GetCrossFadeDuration(const gfx::Rect& old_bounds,
+// and |new_bounds| of the |window|.
+ASH_EXPORT base::TimeDelta GetCrossFadeDuration(aura::Window* window,
+                                                const gfx::Rect& old_bounds,
                                                 const gfx::Rect& new_bounds);
 
 ASH_EXPORT bool AnimateOnChildWindowVisibilityChanged(aura::Window* window,
                                                       bool visible);
 
 // Creates vector of animation sequences that lasts for |duration| and changes
 // brightness and grayscale to |target_value|. Caller takes ownership of
 // returned LayerAnimationSequence objects.
 ASH_EXPORT std::vector<ui::LayerAnimationSequence*>
 CreateBrightnessGrayscaleAnimationSequence(float target_value,
                                            base::TimeDelta duration);
 
 // Applies scale related to the specified AshWindowScaleType.
 ASH_EXPORT void SetTransformForScaleAnimation(
     ui::Layer* layer,
     LayerScaleAnimationDirection type);
 
 // Returns the approximate bounds to which |window| will be animated when it
 // is minimized. The bounds are approximate because the minimize animation
 // involves rotation.
 ASH_EXPORT gfx::Rect GetMinimizeAnimationTargetBoundsInScreen(
     aura::Window* window);
 
 }  // namespace ash
 
 #endif  // ASH_WM_WINDOW_ANIMATIONS_H_