Fix autoplay during prerendering for media elements on Android.

content/renderer/media/android/webmediaplayer_android.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_ANDROID_WEBMEDIAPLAYER_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_
 
 #include <jni.h>
 #include <string>
 #include <vector>
@@ skipping 10 matching lines @@
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/renderer/media/android/media_info_loader.h"
 #include "content/renderer/media/android/media_source_delegate.h"
 #include "content/renderer/media/android/stream_texture_factory.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "media/base/android/media_player_android.h"
 #include "media/base/cdm_context.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_keys.h"
 #include "media/base/time_delta_interpolator.h"
+#include "media/blink/webmediaplayer_params.h"
 #include "media/blink/webmediaplayer_util.h"
 #include "media/cdm/proxy_decryptor.h"
 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayer.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/geometry/rect_f.h"
 
 namespace base {
@@ skipping 46 matching lines @@
   // player can enter fullscreen. This logic should probably be moved into
   // blink, so that enterFullscreen() will not be called if another video is
   // already in fullscreen.
   WebMediaPlayerAndroid(
       blink::WebFrame* frame,
       blink::WebMediaPlayerClient* client,
       blink::WebMediaPlayerEncryptedMediaClient* encrypted_client,
       base::WeakPtr<media::WebMediaPlayerDelegate> delegate,
       RendererMediaPlayerManager* player_manager,
       media::CdmFactory* cdm_factory,
-      media::MediaPermission* media_permission,
-      blink::WebContentDecryptionModule* initial_cdm,
       scoped_refptr<StreamTextureFactory> factory,
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-      media::MediaLog* media_log);
+      const media::WebMediaPlayerParams& params);
   virtual ~WebMediaPlayerAndroid();
 
   // blink::WebMediaPlayer implementation.
   virtual bool supportsOverlayFullscreenVideo();
   virtual void enterFullscreen();
 
   // Resource loading.
   virtual void load(LoadType load_type,
                     const blink::WebURL& url,
                     CORSMode cors_mode);
@@ skipping 224 matching lines @@
   // pipeline/decoders.
   void ContentDecryptionModuleAttached(
       blink::WebContentDecryptionModuleResult result,
       bool success);
 
   bool IsHLSStream() const;
   // Report whether the loaded url, after following redirects, points to a HLS
   // playlist, and record the origin of the player.
   void ReportHLSMetrics() const;
 
+  // Called after |defer_load_cb_| has decided to allow the load. If
+  // |defer_load_cb_| is null this is called immediately.
+  void DoLoad(LoadType load_type, const blink::WebURL& url, CORSMode cors_mode);
+
   blink::WebFrame* const frame_;
 
   blink::WebMediaPlayerClient* const client_;
   blink::WebMediaPlayerEncryptedMediaClient* const encrypted_client_;
 
   // |delegate_| is used to notify the browser process of the player status, so
   // that the browser process can control screen locks.
   // TODO(qinmin): Currently android mediaplayer takes care of the screen
   // lock. So this is only used for media source. Will apply this to regular
   // media tag once http://crbug.com/247892 is fixed.
   base::WeakPtr<media::WebMediaPlayerDelegate> delegate_;
 
+  media::WebMediaPlayerParams::DeferLoadCB defer_load_cb_;

[Charlie Reis, 2015/08/18 23:57:42]

Maybe add a comment using the word "callback," to help clarify what this means?

[DaleCurtis, 2015/08/20 18:47:10]

Done.

+
   // Save the list of buffered time ranges.
   blink::WebTimeRanges buffered_;
 
   // Size of the video.
   blink::WebSize natural_size_;
 
   // Size that has been sent to StreamTexture.
   blink::WebSize cached_stream_texture_size_;
 
   // The video frame object used for rendering by the compositor.
@@ skipping 64 matching lines @@
 
   // Whether the media player is playing.
   bool is_playing_;
 
   // Whether media player needs to re-establish the surface texture peer.
   bool needs_establish_peer_;
 
   // Whether the video size info is available.
   bool has_size_info_;
 
-  const scoped_refptr<base::SingleThreadTaskRunner> compositor_loop_;
+  const scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
 
   // Object for allocating stream textures.
   scoped_refptr<StreamTextureFactory> stream_texture_factory_;
 
   // Object for calling back the compositor thread to repaint the video when a
   // frame available. It should be initialized on the compositor thread.
   // Accessed on main thread and on compositor thread when main thread is
   // blocked.
   ScopedStreamTextureProxy stream_texture_proxy_;
 
@@ skipping 71 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<WebMediaPlayerAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_WEBMEDIAPLAYER_ANDROID_H_