Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/blink/webaudiosourceprovider_impl_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 "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 11 matching lines @@
 namespace media {
 
 namespace {
 const float kTestVolume = 0.25;
 const int kSampleRate = 48000;
 
 class WebAudioSourceProviderImplUnderTest : public WebAudioSourceProviderImpl {
  public:
   WebAudioSourceProviderImplUnderTest(
       scoped_refptr<SwitchableAudioRendererSink> sink)
-      : WebAudioSourceProviderImpl(std::move(sink), new MediaLog()),
+      : WebAudioSourceProviderImpl(std::move(sink), &media_log_),
         fallback_sink_(new MockAudioRendererSink()) {}
 
   MockAudioRendererSink* fallback_sink() { return fallback_sink_.get(); }
 
  protected:
   scoped_refptr<SwitchableAudioRendererSink> CreateFallbackSink() override {
     return fallback_sink_;
   }
 
  private:
   ~WebAudioSourceProviderImplUnderTest() override = default;
+  MediaLog media_log_;
   scoped_refptr<MockAudioRendererSink> fallback_sink_;
 
   DISALLOW_COPY_AND_ASSIGN(WebAudioSourceProviderImplUnderTest);
 };
 
 enum class WaspSinkStatus { WASP_SINK_OK, WASP_SINK_ERROR, WASP_SINK_NULL };
 
 scoped_refptr<MockAudioRendererSink> CreateWaspMockSink(WaspSinkStatus status) {
   if (status == WaspSinkStatus::WASP_SINK_NULL)
     return nullptr;
@@ skipping 288 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     /* prefix intentionally left blank due to only one parameterization */,
     WebAudioSourceProviderImplTest,
     testing::Values(WaspSinkStatus::WASP_SINK_OK,
                     WaspSinkStatus::WASP_SINK_ERROR,
                     WaspSinkStatus::WASP_SINK_NULL));
 
 }  // namespace media