Audio indicator: Mac UI

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

+// 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.
+
+#ifndef CHROME_BROWSER_UI_COCOA_TABS_TAB_AUDIO_INDICATOR_VIEW_MAC_H_
+#define CHROME_BROWSER_UI_COCOA_TABS_TAB_AUDIO_INDICATOR_VIEW_MAC_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/memory/scoped_nsobject.h"
+#include "base/memory/scoped_ptr.h"
+
+namespace content {
+class WebContents;
+}
+class TabAudioIndicator;
+class TabAudioIndicatorDelegateMac;
+
+// A view that draws an audio indicator on top of a favicon.
+@interface TabAudioIndicatorViewMac : NSView {
+ @private
+  scoped_ptr<TabAudioIndicator> tabAudioIndicator_;
+  scoped_ptr<TabAudioIndicatorDelegateMac> delegate_;
+  scoped_nsobject<NSImage> backgroundImage_;
+}
+
+- (void)setIsPlayingAudio:(BOOL)isPlayingAudio;
+
+- (void)setBackgroundImage:(NSImage*)backgroundImage;
+
+- (BOOL)isAnimating;
+
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_TABS_TAB_AUDIO_INDICATOR_VIEW_MAC_H_