[MediaSession] Keep MediaSession controllable when losing audio focus

content/browser/media/session/audio_focus_delegate_android.h

 // 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 CONTENT_BROWSER_MEDIA_SESSION_AUDIO_FOCUS_DELEGATE_ANDROID_H_
 #define CONTENT_BROWSER_MEDIA_SESSION_AUDIO_FOCUS_DELEGATE_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 11 matching lines @@
   ~AudioFocusDelegateAndroid() override;
 
   void Initialize();
 
   bool RequestAudioFocus(
       AudioFocusManager::AudioFocusType audio_focus_type) override;
   void AbandonAudioFocus() override;
 
   // Called when the Android system requests the MediaSession to be suspended.
   // Called by Java through JNI.
-  void OnSuspend(JNIEnv* env,
-                 const base::android::JavaParamRef<jobject>& obj,
-                 jboolean temporary);
+  void OnSuspend(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // Called when the Android system requests the MediaSession to be resumed.
   // Called by Java through JNI.
   void OnResume(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
 
   // Called when the Android system requests the MediaSession to start ducking.
   // Called by Java through JNI.
   void OnStartDucking(JNIEnv* env, jobject obj);
 
   // Called when the Android system requests the MediaSession to stop ducking.
   // Called by Java through JNI.
   void OnStopDucking(JNIEnv* env, jobject obj);
 
   // Record when the Android system requests the MediaSession to duck.
   // Called by Java through JNI.
   void RecordSessionDuck(JNIEnv* env,
                          const base::android::JavaParamRef<jobject>& obj);
 
  private:
   // Weak pointer because |this| is owned by |media_session_|.
   MediaSessionImpl* media_session_;
   base::android::ScopedJavaGlobalRef<jobject> j_media_session_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioFocusDelegateAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_SESSION_AUDIO_FOCUS_DELEGATE_ANDROID_H_