Propagate audible state from player to the containing tab

content/browser/android/audio_monitor_android.h

Index: content/browser/android/audio_monitor_android.h
diff --git a/content/browser/android/audio_monitor_android.h b/content/browser/android/audio_monitor_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..e0eb6f1ee36e25784d80b14a30bf03ae1cd6d4c0
--- /dev/null
+++ b/content/browser/android/audio_monitor_android.h
@@ -0,0 +1,41 @@
+// Copyright (c) 2015 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 CONTENT_BROWSER_ANDROID_AUDIO_MONITOR_ANDROID_H_
+#define CONTENT_BROWSER_ANDROID_AUDIO_MONITOR_ANDROID_H_
+
+#include <map>
+
+namespace content {
+
+class WebContents;
+class RenderFrameHost;
+
+class AudioMonitorAndroid {

[qinmin, 2015/02/03 20:33:24]

docs

[Tima Vaisburd, 2015/02/03 23:53:04]

Done.

+ public:
+  explicit AudioMonitorAndroid(WebContents* web_contents);
+  ~AudioMonitorAndroid();
+
+  bool IsAudible() const;

[qinmin, 2015/02/03 20:33:24]

since this is just a simple getter function, just use 
bool is_audible() const { return is_audible_; }

[Tima Vaisburd, 2015/02/03 23:53:04]

Done.

+  void OnAudibleStateChanged(RenderFrameHost* rfh, int player_id,

[qinmin, 2015/02/03 20:33:24]

missing docs for all the member functions

[Tima Vaisburd, 2015/02/03 23:53:04]

Done.

+                             bool is_audible);
+  void RemovePlayer(RenderFrameHost* rfh, int player_id);
+  void RenderFrameDeleted(RenderFrameHost* rfh);
+
+ private:
+  void UpdateStatusAndNotify();
+
+

[qinmin, 2015/02/03 20:33:24]

extra blank line

[Tima Vaisburd, 2015/02/03 23:53:04]

Done.

+  WebContents* web_contents_;
+
+  typedef std::pair<RenderFrameHost*, int> Key;
+  typedef std::map<Key, bool> StatusMap;
+  StatusMap players_;

[qinmin, 2015/02/03 20:33:24]

players_ is not a good variable name here, what about audio_status_map_?

[Tima Vaisburd, 2015/02/03 23:53:05]

Done.

+
+  bool is_audible_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_ANDROID_AUDIO_MONITOR_ANDROID_H_