Tab audio indicator: Use animation container on Mac

chrome/browser/ui/cocoa/tabs/tab_audio_indicator_view_mac.mm

 // Copyright (c) 2013 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/tabs/tab_audio_indicator_view_mac.h"
 
 #include "chrome/browser/ui/tabs/tab_audio_indicator.h"
 #include "ui/gfx/canvas_skia_paint.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/rect.h"
@@ skipping 31 matching lines @@
 
 - (void)setIsPlayingAudio:(BOOL)isPlayingAudio {
   tabAudioIndicator_->SetIsPlayingAudio(isPlayingAudio);
 }
 
 - (void)setBackgroundImage:(NSImage*)backgroundImage {
   gfx::Image image([backgroundImage retain]);
   tabAudioIndicator_->set_favicon(*image.ToImageSkia());
 }
 
+- (void)setAnimationContainer:(ui::AnimationContainer*)animationContainer {
+  tabAudioIndicator_->SetAnimationContainer(animationContainer);
+}
+
 - (BOOL)isAnimating {
   return tabAudioIndicator_->IsAnimating();
 }
 
 - (void)drawRect:(NSRect)rect {
   gfx::CanvasSkiaPaint canvas(rect, false);
   canvas.set_composite_alpha(true);
   tabAudioIndicator_->Paint(&canvas, gfx::Rect(NSRectToCGRect([self bounds])));
 }
 
 @end