Support fullscreen for non-video elements in the WebView.

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

Index: content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java b/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
index a29a3a3ddbff64826fa767220a2da37c890e60e3..01855118ed6a780c4ea7c47eef878255e4caa36d 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentVideoView.java
@@ -418,13 +418,15 @@ public class ContentVideoView extends FrameLayout
 
     @CalledByNative
     private static ContentVideoView createContentVideoView(
-            Context context, long nativeContentVideoView, ContentVideoViewClient client) {
+            ContentViewCore contentViewCore, long nativeContentVideoView) {
         ThreadUtils.assertOnUiThread();
         // The context needs be Activity to create the ContentVideoView correctly.
+        Context context = contentViewCore.getContext();
         if (!isActivityContext(context)) {
             Log.e(TAG, "Wrong type of context, can't create fullscreen video");
             return null;
         }
+        ContentVideoViewClient client = contentViewCore.getContentVideoViewClient();
         ContentVideoView videoView = new ContentVideoView(context, nativeContentVideoView, client);
         client.enterFullscreenVideo(videoView);
         return videoView;