Switch SupportsUserData uses to use unique_ptr.

chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc

Index: chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc
diff --git a/chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc b/chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc
index 6b964e12ae1d043dcd6a8ed617a1a67ba80b7158..cbaf4b49c6314c342d00fec651640ee869a5a2e4 100644
--- a/chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc
+++ b/chrome/browser/media/router/receiver_presentation_service_delegate_impl.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/media/router/receiver_presentation_service_delegate_impl.h"
 
+#include "base/memory/ptr_util.h"
 #include "chrome/browser/media/router/offscreen_presentation_manager.h"
 #include "chrome/browser/media/router/offscreen_presentation_manager_factory.h"
 
@@ -23,9 +24,10 @@ void ReceiverPresentationServiceDelegateImpl::CreateForWebContents(
   if (FromWebContents(web_contents))
     return;
 
-  web_contents->SetUserData(UserDataKey(),
-                            new ReceiverPresentationServiceDelegateImpl(
-                                web_contents, presentation_id));
+  web_contents->SetUserData(
+      UserDataKey(),
+      base::WrapUnique(new ReceiverPresentationServiceDelegateImpl(

[DaleCurtis, 2017/05/03 17:26:15]

Ditto. this is already wrapped so prefer MakeUnique.

+          web_contents, presentation_id)));
 }
 
 void ReceiverPresentationServiceDelegateImpl::AddObserver(