Fix the ownership of media_log_ in WebMediaPlayerAndroid

WebMediaPlayer should own media_log_, fix the leak there.

Review URL: https://codereview.chromium.org/496103002

Cr-Commit-Position: refs/heads/master@{#291443}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@291443 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/media/android/media_source_delegate.cc

@@ -49,7 +49,7 @@ MediaSourceDelegate::MediaSourceDelegate(
     RendererDemuxerAndroid* demuxer_client,
     int demuxer_client_id,
     const scoped_refptr<base::MessageLoopProxy>& media_loop,
-    media::MediaLog* media_log)
+    const scoped_refptr<media::MediaLog> media_log)
     : demuxer_client_(demuxer_client),
       demuxer_client_id_(demuxer_client_id),
       media_log_(media_log),

content/renderer/media/android/media_source_delegate.h

@@ -56,7 +56,7 @@ class MediaSourceDelegate : public media::DemuxerHost {
   MediaSourceDelegate(RendererDemuxerAndroid* demuxer_client,
                       int demuxer_client_id,
                       const scoped_refptr<base::MessageLoopProxy>& media_loop,
-                      media::MediaLog* media_log);
+                      const scoped_refptr<media::MediaLog> media_log);
 
   // Initialize the MediaSourceDelegate. |media_source| will be owned by
   // this object after this call.

content/renderer/media/android/webmediaplayer_android.cc

@@ -37,6 +37,7 @@
 #include "media/base/bind_to_current_loop.h"
 // TODO(xhwang): Remove when we remove prefixed EME implementation.
 #include "media/base/media_keys.h"
+#include "media/base/media_log.h"
 #include "media/base/media_switches.h"
 #include "media/base/video_frame.h"
 #include "net/base/mime_util.h"

content/renderer/media/android/webmediaplayer_android.h

@@ -453,7 +453,7 @@ class WebMediaPlayerAndroid : public blink::WebMediaPlayer,
   // Whether the browser is currently connected to a remote media player.
   bool is_remote_;
 
-  media::MediaLog* media_log_;
+  scoped_refptr<media::MediaLog> media_log_;
 
   scoped_ptr<MediaInfoLoader> info_loader_;