Enable the embedded L1/EME support in WebView.

content/browser/web_contents/web_contents_view_android.h

Index: content/browser/web_contents/web_contents_view_android.h
diff --git a/content/browser/web_contents/web_contents_view_android.h b/content/browser/web_contents/web_contents_view_android.h
index 3d043eca08c0b220ca8862380b0e79ac66e5b70a..19948f425765e316ee6bcc194c3da288cd191f67 100644
--- a/content/browser/web_contents/web_contents_view_android.h
+++ b/content/browser/web_contents/web_contents_view_android.h
@@ -30,9 +30,10 @@ class WebContentsViewAndroid : public WebContentsViewPort,
   void SetContentViewCore(ContentViewCoreImpl* content_view_core);
 
 #if defined(VIDEO_HOLE)
-  void NotifyExternalSurface(int player_id,
-                             bool is_request,
-                             const gfx::RectF& rect);
+  void RequestExternalVideoSurface(int player_id);
+  void ReleaseExternalVideoSurface(int player_id);
+  void NotifyExternalVideoSurfacePositionChanged(int player_id,
+                                                 const gfx::RectF& rect);
 #endif  // defined(VIDEO_HOLE)
 
   // WebContentsView implementation --------------------------------------------