Enable SurfaceView fullscreen video on Android with WebMediaPlayerImpl

content/renderer/media/android/renderer_surface_view_manager.h

+// Copyright 2016 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_RENDERER_MEDIA_ANDROID_RENDERER_SURFACE_VIEW_MANAGER_H_
+#define CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_SURFACE_VIEW_MANAGER_H_
+
+#include "base/callback.h"
+#include "content/common/content_export.h"
+#include "content/public/renderer/render_frame_observer.h"
+#include "media/base/surface_manager.h"
+#include "ui/gfx/geometry/size.h"
+
+namespace content {
+
+// RendererSurfaceViewManager creates delegates requests for video SurfaceViews
+// to BrowserSurfaceViewManager. The returned surface ids may be invalidated
+// at any time (e.g., when the app is backgrounded), so clients should handle
+// this gracefully. It should be created and used on a single thread only.
+class CONTENT_EXPORT RendererSurfaceViewManager : public media::SurfaceManager,
+                                                  public RenderFrameObserver {
+ public:
+  explicit RendererSurfaceViewManager(RenderFrame* render_frame);
+  ~RendererSurfaceViewManager() override;
+
+  // RenderFrameObserver override.
+  bool OnMessageReceived(const IPC::Message& msg) override;
+
+  // SurfaceManager overrides.
+  void CreateFullscreenSurface(
+      const gfx::Size& video_natural_size,
+      const media::SurfaceCreatedCB& surface_created_cb) override;
+  void NaturalSizeChanged(const gfx::Size& size) override;
+
+ private:
+  void OnFullscreenSurfaceCreated(int surface_id);
+
+  // Set when a surface request is in progress.
+  media::SurfaceCreatedCB pending_surface_created_cb_;
+
+  DISALLOW_COPY_AND_ASSIGN(RendererSurfaceViewManager);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_SURFACE_VIEW_MANAGER_H_