Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/blink/multibuffer_data_source_unittest.cc

 // 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 177 matching lines @@
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       linked_ptr<UrlIndex> url_index,
       WebLocalFrame* frame,
       BufferedDataSourceHost* host)
       : MultibufferDataSource(
             url,
             cors_mode,
             task_runner,
             url_index,
             frame,
-            new media::MediaLog(),
+            &media_log_,
             host,
             base::Bind(&MockMultibufferDataSource::set_downloading,
                        base::Unretained(this))),
         downloading_(false) {}
 
   bool downloading() { return downloading_; }
   void set_downloading(bool downloading) { downloading_ = downloading; }
   bool range_supported() { return url_data_->range_supported(); }
 
  private:
   // Whether the resource is downloading or deferred.
   bool downloading_;
+  MediaLog media_log_;
 
   DISALLOW_COPY_AND_ASSIGN(MockMultibufferDataSource);
 };
 
 static const int64_t kFileSize = 5000000;
 static const int64_t kFarReadPosition = 3997696;
 static const int kDataSize = 32 << 10;
 
 static const char kHttpUrl[] = "http://localhost/foo.webm";
 static const char kFileUrl[] = "file:///tmp/bar.webm";
@@ skipping 1375 matching lines @@
                      base::Bind(&MultibufferDataSourceTest::ReadCallback,
                                 base::Unretained(this)));
   base::RunLoop().RunUntilIdle();
 
   // Make sure we're not downloading anymore.
   EXPECT_EQ(data_source_->downloading(), false);
   Stop();
 }
 
 }  // namespace media