Switch SupportsUserData uses to use unique_ptr.

The interface taking a raw pointer is deprecated and being removed.

BUG=690937

Review-Url: https://codereview.chromium.org/2851513005
Cr-Commit-Position: refs/heads/master@{#468896}

chrome/browser/media/cast_remoting_connector.cc

@@ -146,7 +146,7 @@ CastRemotingConnector* CastRemotingConnector::Get(
         media_router::MediaSourceForTabContentRemoting(
             SessionTabHelper::IdForTab(contents))
             .id());
-    contents->SetUserData(kUserDataKey, connector);
+    contents->SetUserData(kUserDataKey, base::WrapUnique(connector));
   }
   return connector;
 }

chrome/browser/media/cast_remoting_connector.h

@@ -66,6 +66,8 @@ class CastRemotingConnector
     : public base::SupportsUserData::Data,
       public media_router::MediaRoutesObserver {
  public:
+  ~CastRemotingConnector() final;
+
   // Returns the instance of the CastRemotingConnector associated with
   // |source_contents|, creating a new instance if needed.
   static CastRemotingConnector* Get(content::WebContents* source_contents);
@@ -99,8 +101,6 @@ class CastRemotingConnector
   CastRemotingConnector(media_router::MediaRouter* router,
                         const media_router::MediaSource::Id& media_source_id);
 
-  ~CastRemotingConnector() final;
-
   // Creates a RemotingBridge that implements the requested Remoter service, and
   // binds it to the interface |request|.
   void CreateBridge(media::mojom::RemotingSourcePtr source,

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