[Android] A prototype of the interactive media notification.

chrome/android/java/src/org/chromium/chrome/browser/ChromeWebContentsDelegateAndroid.java

 // Copyright 2012 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.
 
 package org.chromium.chrome.browser;
 
 import android.graphics.Rect;
 import android.graphics.RectF;
 
 import org.chromium.base.CalledByNative;
@@ skipping 86 matching lines @@
             int version, int numRects, RectF activeRect) {
         return new FindMatchRectsDetails(version, numRects, activeRect);
     }
 
     @CalledByNative
     private static void setMatchRectByIndex(
             FindMatchRectsDetails findMatchRectsDetails, int index, RectF rect) {
         findMatchRectsDetails.rects[index] = rect;
     }
 
+    @CalledByNative
+    public void showMediaControls(boolean isPaused) {
+    }
+
+    @CalledByNative
+    public void hideMediaControls() {
+    }
+
+    public static native void nativeOnMediaControlsPause(WebContents webContents);
+    public static native void nativeOnMediaControlsResume(WebContents webContents);
     protected static native boolean nativeIsCapturingAudio(WebContents webContents);
     protected static native boolean nativeIsCapturingVideo(WebContents webContents);
     protected static native boolean nativeHasAudibleAudio(WebContents webContents);
 }