Adding new media controls to MediaNotification

content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java

Index: content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java
diff --git a/content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java b/content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java
index 5dd8096fe2b16e97b4037eb895b5a35d19ed187c..9d3f2df1febe80207dbabefe908e55870d5b5cb6 100644
--- a/content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java
+++ b/content/public/android/java/src/org/chromium/content_public/browser/WebContentsObserver.java
@@ -186,6 +186,18 @@ public abstract class WebContentsObserver {
     public void mediaSessionMetadataChanged(MediaMetadata metadata) {}
 
     /**
+     * Called when the media session has enabled an action.
+     * @param action the enabled action.
+     */
+    public void mediaSessionEnabledAction(int action) {}
+
+    /**
+     * Called when the media session has disabled an action.
+     * @param action the disabled action.
+     */
+    public void mediaSessionDisabledAction(int action) {}
+
+    /**
      * Stop observing the web contents and clean up associated references.
      */
     public void destroy() {