[Mac] Tests for FullscreenToolbarController

chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_animation_controller.h

 // Copyright 2016 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 CHROME_BROWSER_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/timer/timer.h"
@@ skipping 24 matching lines @@
   // Animates the toolbar out if it's not focused.
   void AnimateToolbarOutIfPossible();
 
   // Returns the fraction of the toolbar exposed at the top according to the
   // animation's progress.
   CGFloat GetToolbarFractionFromProgress() const;
 
   // Returns true if |animation_| is running.
   bool IsAnimationRunning() const;
 
+  // Only for testing. Sets the duration of |animation_|.
+  void SetAnimationDuration(CGFloat duration);
+
   // gfx::AnimationDelegate:
   void AnimationProgressed(const gfx::Animation* animation) override;
   void AnimationEnded(const gfx::Animation* animation) override;
 
  private:
   // Our owner.
   FullscreenToolbarController* owner_;  // weak
 
   // The animation of the decoration.
   gfx::SlideAnimation animation_;
 
   // Timer that will start the scrollbar's hiding animation when it reaches 0.
   base::Timer hide_toolbar_timer_;
 
   // The value that the animation should start from.
   CGFloat animation_start_value_;
 
   // True when the toolbar is dropped to show tabstrip changes.
   BOOL should_hide_toolbar_after_delay_;
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_FULLSCREEN_FULLSCREEN_TOOLBAR_ANIMATION_CONTROLLER_H_