Add MediaServiceThrottler

media/base/android/media_server_crash_listener.h

Index: media/base/android/media_server_crash_listener.h
diff --git a/media/base/android/media_server_crash_listener.h b/media/base/android/media_server_crash_listener.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc58eab0b1137caf68064eee36c93c7428045ebd
--- /dev/null
+++ b/media/base/android/media_server_crash_listener.h
@@ -0,0 +1,57 @@
+// 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 MEDIA_BASE_ANDROID_MEDIA_SERVER_CRASH_LISTENER_H_
+#define MEDIA_BASE_ANDROID_MEDIA_SERVER_CRASH_LISTENER_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "base/single_thread_task_runner.h"
+
+namespace media {
+
+class MediaServerCrashListener {
+ public:
+  static bool RegisterMediaServerCrashListener(JNIEnv* env);
+
+  // Called to get the singleton MediaServerCrashListener instance.
+  static MediaServerCrashListener* GetInstance();
+  virtual ~MediaServerCrashListener();
+
+  // Starts listening for media server crashes.
+  // Can be called from any thread, but will post crashes to |callback_thread|.
+  void SetOnServerCrashCallback(
+      const base::Closure& on_server_crash_cb,
+      scoped_refptr<base::SingleThreadTaskRunner> callback_thread);
+
+  // Starts listening for media server crashes.
+  // Returns true if the media server successfully started listening, and false
+  // otherwise.
+  bool StartListening();
+
+  void OnMediaServerCrashDetected(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+
+  void ClearOnServerCrashCallbackForTesting();
+
+ private:
+  friend struct base::DefaultSingletonTraits<MediaServerCrashListener>;
+  MediaServerCrashListener();
+
+  base::Closure on_server_crash_cb_;
+
+  scoped_refptr<base::SingleThreadTaskRunner> callback_task_runner_;
+
+  base::android::ScopedJavaGlobalRef<jobject> j_crash_listener_;
+  DISALLOW_COPY_AND_ASSIGN(MediaServerCrashListener);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_ANDROID_MEDIA_SERVER_CRASH_LISTENER_H_