Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/blink/webmediaplayer_impl_unittest.cc

Index: media/blink/webmediaplayer_impl_unittest.cc
diff --git a/media/blink/webmediaplayer_impl_unittest.cc b/media/blink/webmediaplayer_impl_unittest.cc
index 0d4e6f87e5afbe066c5e73f6a562803e78337fa5..f607b65c5c85919a5709700a14dae45cd0c7501c 100644
--- a/media/blink/webmediaplayer_impl_unittest.cc
+++ b/media/blink/webmediaplayer_impl_unittest.cc
@@ -204,21 +204,24 @@ class WebMediaPlayerImplTest : public testing::Test {
                                          &web_frame_client_,
                                          nullptr,
                                          nullptr)),
-        media_log_(new MediaLog()),
         audio_parameters_(TestAudioParameters::Normal()) {
     web_view_->SetMainFrame(web_local_frame_);
     media_thread_.StartAndWaitForTesting();
   }
 
   void InitializeWebMediaPlayerImpl(bool allow_suspend) {
+    std::unique_ptr<MediaLog> media_log(new MediaLog());
+    std::unique_ptr<RendererFactory> renderer_factory(
+        new DefaultRendererFactory(
+            media_log.get(), nullptr,
+            DefaultRendererFactory::GetGpuFactoriesCB()));
+
     wmpi_ = base::MakeUnique<WebMediaPlayerImpl>(
         web_local_frame_, &client_, nullptr, &delegate_,
-        base::MakeUnique<DefaultRendererFactory>(
-            media_log_, nullptr, DefaultRendererFactory::GetGpuFactoriesCB()),
-        url_index_,
-        WebMediaPlayerParams(
-            WebMediaPlayerParams::DeferLoadCB(),
-            scoped_refptr<SwitchableAudioRendererSink>(), media_log_,
+        std::move(renderer_factory), url_index_,
+        base::MakeUnique<WebMediaPlayerParams>(
+            std::move(media_log), WebMediaPlayerParams::DeferLoadCB(),
+            scoped_refptr<SwitchableAudioRendererSink>(),
             media_thread_.task_runner(), message_loop_.task_runner(),
             message_loop_.task_runner(), WebMediaPlayerParams::Context3DCB(),
             base::Bind(&OnAdjustAllocatedMemory), nullptr, nullptr, nullptr,
@@ -356,7 +359,6 @@ class WebMediaPlayerImplTest : public testing::Test {
   blink::WebView* web_view_;
   blink::WebLocalFrame* web_local_frame_;
 
-  scoped_refptr<MediaLog> media_log_;
   linked_ptr<media::UrlIndex> url_index_;
 
   // Audio hardware configuration.