Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/renderer/cast_content_renderer_client.cc

Index: chromecast/renderer/cast_content_renderer_client.cc
diff --git a/chromecast/renderer/cast_content_renderer_client.cc b/chromecast/renderer/cast_content_renderer_client.cc
index c06c618baf3c25061860618587df7ea21c8a26aa..370b8372dfa7d1c5deae204f95857ab3799104a4 100644
--- a/chromecast/renderer/cast_content_renderer_client.cc
+++ b/chromecast/renderer/cast_content_renderer_client.cc
@@ -146,7 +146,7 @@ void CastContentRendererClient::AddKeySystems(
 }
 
 #if !defined(OS_ANDROID)
-scoped_ptr<::media::RendererFactory>
+std::unique_ptr<::media::RendererFactory>
 CastContentRendererClient::CreateMediaRendererFactory(
     ::content::RenderFrame* render_frame,
     ::media::GpuVideoAcceleratorFactories* gpu_factories,
@@ -155,7 +155,7 @@ CastContentRendererClient::CreateMediaRendererFactory(
   if (!cmd_line->HasSwitch(switches::kEnableCmaMediaPipeline))
     return nullptr;
 
-  return scoped_ptr<::media::RendererFactory>(
+  return std::unique_ptr<::media::RendererFactory>(
       new chromecast::media::ChromecastMediaRendererFactory(
           gpu_factories, render_frame->GetRoutingID()));
 }