[Mac] Tests for FullscreenToolbarController

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

 // 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.
 
 #import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_animation_controller.h"
 
 #import "chrome/browser/ui/cocoa/fullscreen/fullscreen_toolbar_controller.h"
 
 namespace {
 
@@ skipping 71 matching lines @@
 
 CGFloat FullscreenToolbarAnimationController::GetToolbarFractionFromProgress()
     const {
   return animation_.GetCurrentValue();
 }
 
 bool FullscreenToolbarAnimationController::IsAnimationRunning() const {
   return animation_.is_animating();
 }
 
+void FullscreenToolbarAnimationController::SetAnimationDuration(
+    CGFloat duration) {
+  animation_.SetSlideDuration(duration);
+}
+
 //////////////////////////////////////////////////////////////////
 // FullscreenToolbarAnimationController::AnimationDelegate:
 
 void FullscreenToolbarAnimationController::AnimationProgressed(
     const gfx::Animation* animation) {
   [owner_ updateToolbarLayout];
 }
 
 void FullscreenToolbarAnimationController::AnimationEnded(
     const gfx::Animation* animation) {
   if (animation_.IsShowing() && should_hide_toolbar_after_delay_) {
     hide_toolbar_timer_.Reset();
     should_hide_toolbar_after_delay_ = false;
   }
 }