Remove unneeded ScopedLayerAnimationSettings::LockTransitionDuration()

ui/views/corewm/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 UI_VIEWS_COREWM_WINDOW_ANIMATIONS_H_
 #define UI_VIEWS_COREWM_WINDOW_ANIMATIONS_H_
 
 #include <vector>
 
 #include "ui/views/views_export.h"
@@ skipping 52 matching lines @@
 VIEWS_EXPORT int GetWindowVisibilityAnimationType(aura::Window* window);
 
 VIEWS_EXPORT void SetWindowVisibilityAnimationTransition(
     aura::Window* window,
     WindowVisibilityAnimationTransition transition);
 
 VIEWS_EXPORT bool HasWindowVisibilityAnimationTransition(
     aura::Window* window,
     WindowVisibilityAnimationTransition transition);
 
-VIEWS_EXPORT void SetWindowVisibilityAnimationDuration(
+// Sets the duration of |window|'s show animation.
+VIEWS_EXPORT void SetWindowShowAnimationDuration(
     aura::Window* window,
     const base::TimeDelta& duration);
 
+// Sets the duration of |window|'s hide animation.
+VIEWS_EXPORT void SetWindowHideAnimationDuration(
+    aura::Window* window,
+    const base::TimeDelta& duration);
+
+// Returns the duration of |window|'s show animation if it is set and
+// |default_duration| otherwise.
+VIEWS_EXPORT base::TimeDelta GetWindowShowAnimationDuration(
+    aura::Window* window,
+    const base::TimeDelta& default_duration);
+
+// Returns the duration of |window|'s hide animation duration if it is set and
+// |default_duration| otherwise.
+VIEWS_EXPORT base::TimeDelta GetWindowHideAnimationDuration(
+    aura::Window* window,
+    const base::TimeDelta& default_duration);
+
 VIEWS_EXPORT void SetWindowVisibilityAnimationVerticalPosition(
     aura::Window* window,
     float position);
 
 // Creates an ImplicitAnimationObserver that takes ownership of the layers
 // associated with a Window so that the animation can continue after the Window
 // has been destroyed.
 // The returned object deletes itself when the animations are done.
 VIEWS_EXPORT ui::ImplicitAnimationObserver* CreateHidingWindowAnimationObserver(
     aura::Window* window);
 
 // Returns false if the |window| didn't animate.
 VIEWS_EXPORT bool AnimateOnChildWindowVisibilityChanged(aura::Window* window,
                                                         bool visible);
 VIEWS_EXPORT bool AnimateWindow(aura::Window* window, WindowAnimationType type);
 
 // Returns true if window animations are disabled for |window|. Window
 // animations are enabled by default. If |window| is NULL, this just checks
 // if the global flag disabling window animations is present.
 VIEWS_EXPORT bool WindowAnimationsDisabled(aura::Window* window);
 
 }  // namespace corewm
 }  // namespace views
 
 #endif  // UI_VIEWS_COREWM_WINDOW_ANIMATIONS_H_