Enable the embedded L1/EME support in WebView.

content/browser/android/content_view_core_impl.h

Index: content/browser/android/content_view_core_impl.h
diff --git a/content/browser/android/content_view_core_impl.h b/content/browser/android/content_view_core_impl.h
index 746421066247a07330d048aabb2b090e19f35170..4c6b600c215467fae08c0d99468c28f41bb9b2b5 100644
--- a/content/browser/android/content_view_core_impl.h
+++ b/content/browser/android/content_view_core_impl.h
@@ -217,11 +217,6 @@ class ContentViewCoreImpl : public ContentViewCore,
                             jint delegate);
   jboolean IsShowingInterstitialPage(JNIEnv* env, jobject obj);
 
-  void AttachExternalVideoSurface(JNIEnv* env,
-                                  jobject obj,
-                                  jint player_id,
-                                  jobject jsurface);
-  void DetachExternalVideoSurface(JNIEnv* env, jobject obj, jint player_id);
   void SetAccessibilityEnabled(JNIEnv* env, jobject obj, bool enabled);
   void SendActionAfterDoubleTapUma(JNIEnv* env,
                                    jobject obj,
@@ -291,11 +286,6 @@ class ContentViewCoreImpl : public ContentViewCore,
   // testing/benchmarking purposes
   base::android::ScopedJavaLocalRef<jobject> CreateTouchEventSynthesizer();
 
-  // Notifies the java object about the external surface, requesting for one if
-  // necessary.
-  void NotifyExternalSurface(
-      int player_id, bool is_request, const gfx::RectF& rect);
-
   base::android::ScopedJavaLocalRef<jobject> GetContentVideoViewClient();
 
   // Returns the context that the ContentViewCore was created with, it would