Unit test for WebMediaPlayerMS

content/renderer/media/webmediaplayer_ms.h

 // Copyright 2013 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_WEBMEDIAPLAYER_MS_H_
 #define CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
+#include "content/common/content_export.h"
 #include "media/blink/skcanvas_video_renderer.h"
 #include "media/blink/webmediaplayer_util.h"
 #include "media/renderers/gpu_video_accelerator_factories.h"
 
 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
 
 namespace blink {
 class WebFrame;
 class WebGraphicsContext3D;
 class WebMediaPlayerClient;
 }
 
+namespace cc {
+class VideoFrameProvider;
+}
+
 namespace media {
 class MediaLog;
 class WebMediaPlayerDelegate;
 class VideoFrame;
 }
 
 namespace cc_blink {
 class WebLayerImpl;
 }
 
@@ skipping 13 matching lines @@
 //
 // VideoFrameProvider
 //   provides video frames for rendering.
 //
 // TODO(wjia): add AudioPlayer.
 // AudioPlayer
 //   plays audio streams.
 //
 // blink::WebMediaPlayerClient
 //   WebKit client of this media player object.
-class WebMediaPlayerMS
-    : public blink::WebMediaPlayer,
-      public base::SupportsWeakPtr<WebMediaPlayerMS> {
+class CONTENT_EXPORT WebMediaPlayerMS
+    : public NON_EXPORTED_BASE(blink::WebMediaPlayer),
+      public NON_EXPORTED_BASE(base::SupportsWeakPtr<WebMediaPlayerMS>) {
  public:
   // Construct a WebMediaPlayerMS with reference to the client, and
   // a MediaStreamClient which provides VideoFrameProvider.
   WebMediaPlayerMS(
       blink::WebFrame* frame,
       blink::WebMediaPlayerClient* client,
       base::WeakPtr<media::WebMediaPlayerDelegate> delegate,
       media::MediaLog* media_log,
       scoped_ptr<MediaStreamRendererFactory> factory,
       const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
@@ skipping 57 matching lines @@
 
   bool copyVideoTextureToPlatformTexture(
       blink::WebGraphicsContext3D* web_graphics_context,
       unsigned int texture,
       unsigned int internal_format,
       unsigned int type,
       bool premultiply_alpha,
       bool flip_y) override;
 
  private:
+  friend class WebMediaPlayerMSTest;
+
   // The callback for VideoFrameProvider to signal a new frame is available.
   void OnFrameAvailable(const scoped_refptr<media::VideoFrame>& frame);
   // Need repaint due to state change.
   void RepaintInternal();
 
   // The callback for source to report error.
   void OnSourceError();
 
   // Helpers that set the network/ready state and notifies the client if
   // they've changed.
   void SetNetworkState(blink::WebMediaPlayer::NetworkState state);
   void SetReadyState(blink::WebMediaPlayer::ReadyState state);
 
   // Getter method to |client_|.
   blink::WebMediaPlayerClient* get_client() { return client_; }
 
+  // Correspondence of load(), for unit test use only.
+  cc::VideoFrameProvider* LoadForTesting(bool algorithm_enabled);

[mcasas, 2015/10/21 19:54:02]

Load what exactly?
Write a more significant comment.

[qiangchen, 2015/10/22 17:22:58]

Done.

+
   blink::WebFrame* const frame_;
 
   blink::WebMediaPlayer::NetworkState network_state_;
   blink::WebMediaPlayer::ReadyState ready_state_;
 
   const blink::WebTimeRanges buffered_;
 
   blink::WebMediaPlayerClient* const client_;
 
   const base::WeakPtr<media::WebMediaPlayerDelegate> delegate_;
@@ skipping 25 matching lines @@
   scoped_ptr<WebMediaPlayerMSCompositor> compositor_;
 
   const scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerMS);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBMEDIAPLAYER_MS_H_