Start hooking up "element.requestFullscreen()" in chrome for android.

chrome/browser/component/web_contents_delegate_android/java/src/org/chromium/chrome/browser/component/web_contents_delegate_android/WebContentsDelegateAndroid.java

 // Copyright (c) 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.component.web_contents_delegate_android;
 
 import android.graphics.Rect;
 import android.view.KeyEvent;
 
 import org.chromium.base.CalledByNative;
@@ skipping 97 matching lines @@
         return false;
     }
 
     /**
      * Report a form resubmission. The overwriter of this function should eventually call
      * either of ContentViewCore.ContinuePendingReload or ContentViewCore.CancelPendingReload.
      */
     @CalledByNative
     public void showRepostFormWarningDialog(ContentViewCore contentViewCore) {
     }
+
+    @CalledByNative
+    public void toggleFullscreenModeForTab(boolean enterFullscreen) {
+    }
+
+    @CalledByNative
+    public boolean isFullscreenForTabOrPending() {
+        return false;
+    }
 }