Revert of Adding new media controls to MediaNotification

content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java

Index: content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java b/content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java
index 15350c59abee0115a5af0e1d6428b5636a3fa8a8..b15cfd1581771769f9d44697813bafdfa4c2b562 100644
--- a/content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java
+++ b/content/public/android/java/src/org/chromium/content/browser/MediaSessionImpl.java
@@ -56,11 +56,6 @@
         nativeStop(mNativeMediaSessionAndroid);
     }
 
-    @Override
-    public void didReceiveAction(int action) {
-        nativeDidReceiveAction(mNativeMediaSessionAndroid, action);
-    }
-
     @CalledByNative
     private boolean hasObservers() {
         return !mObservers.isEmpty();
@@ -93,20 +88,6 @@
     }
 
     @CalledByNative
-    private void mediaSessionEnabledAction(int action) {
-        for (mObserversIterator.rewind(); mObserversIterator.hasNext();) {
-            mObserversIterator.next().mediaSessionEnabledAction(action);
-        }
-    }
-
-    @CalledByNative
-    private void mediaSessionDisabledAction(int action) {
-        for (mObserversIterator.rewind(); mObserversIterator.hasNext();) {
-            mObserversIterator.next().mediaSessionDisabledAction(action);
-        }
-    }
-
-    @CalledByNative
     private static MediaSessionImpl create(long nativeMediaSession) {
         return new MediaSessionImpl(nativeMediaSession);
     }
@@ -120,7 +101,6 @@
     private native void nativeResume(long nativeMediaSessionAndroid);
     private native void nativeSuspend(long nativeMediaSessionAndroid);
     private native void nativeStop(long nativeMediaSessionAndroid);
-    private native void nativeDidReceiveAction(long nativeMediaSessionAndroid, int action);
     private static native MediaSessionImpl nativeGetMediaSessionFromWebContents(
             WebContents contents);
 }