Enable the embedded L1/EME support in WebView.

content/public/browser/android/external_video_surface_container.h

+// Copyright 2014 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.
+
+#ifndef CONTENT_PUBLIC_BROWSER_ANDROID_EXTERNAL_VIDEO_SURFACE_CONTAINER_H_
+#define CONTENT_PUBLIC_BROWSER_ANDROID_EXTERNAL_VIDEO_SURFACE_CONTAINER_H_
+
+#include <jni.h>
+
+#include "base/callback.h"
+#include "content/common/content_export.h"
+
+namespace gfx {
+class RectF;
+}
+
+namespace content {
+class WebContents;
+
+// An interface used for managing the video surface for the hole punching.
+class CONTENT_EXPORT ExternalVideoSurfaceContainer {
+ public:
+  typedef base::Callback<void(int, jobject)> SurfaceCreatedCB;
+  typedef base::Callback<void(int)> SurfaceDestroyedCB;
+
+  // Creates an ExternalVideoSurfaceContainer, and attaches it to the given
+  // WebContents. If an instance is already attached, does nothing.
+  static void CreateForWebContents(WebContents* contents);
+
+  // Returns the existing ExternalVideoSurfaceContainer attached to the given
+  // WebContents or NULL.
+  static ExternalVideoSurfaceContainer* FromWebContents(WebContents* contents);
+
+  // Called when a media player wants to request an external video surface.
+  // Whenever the surface is created and visible, |surface_created_cb| will be
+  // called.  And whenever it is destroyed or invisible, |surface_destroyed_cb|
+  // will be called.
+  virtual void RequestExternalVideoSurface(
+      int player_id,
+      const SurfaceCreatedCB& surface_created_cb,
+      const SurfaceDestroyedCB& surface_destroyed_cb) = 0;
+
+  // Called when a media player wants to release an external video surface.
+  virtual void ReleaseExternalVideoSurface(int player_id) = 0;
+
+  // Called when the position and size of the video element which uses
+  // the external video surface is changed.
+  // |rect| contains the new position and size in css pixels.
+  virtual void OnExternalVideoSurfacePositionChanged(
+      int player_id, const gfx::RectF& rect) = 0;
+
+  // Called when the page that contains the video element is scrolled or zoomed.
+  virtual void OnFrameInfoUpdated() = 0;
+
+ protected:
+  virtual ~ExternalVideoSurfaceContainer() {}
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_EXTERNAL_VIDEO_SURFACE_CONTAINER_H_