Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/media_router/media_router_ui.cc

Index: chrome/browser/ui/webui/media_router/media_router_ui.cc
diff --git a/chrome/browser/ui/webui/media_router/media_router_ui.cc b/chrome/browser/ui/webui/media_router/media_router_ui.cc
index 21b89579851141259b91e9229038e018f6da57d2..a962fc1969ca5eb668a3212465655f28650e58c0 100644
--- a/chrome/browser/ui/webui/media_router/media_router_ui.cc
+++ b/chrome/browser/ui/webui/media_router/media_router_ui.cc
@@ -170,7 +170,7 @@ MediaRouterUI::MediaRouterUI(content::WebUI* web_ui)
       weak_factory_(this) {
   // Create a WebUIDataSource containing the chrome://media-router page's
   // content.
-  scoped_ptr<content::WebUIDataSource> html_source(
+  std::unique_ptr<content::WebUIDataSource> html_source(
       content::WebUIDataSource::Create(chrome::kChromeUIMediaRouterHost));
 
   content::WebContents* wc = web_ui->GetWebContents();
@@ -232,7 +232,8 @@ void MediaRouterUI::InitWithDefaultMediaSource(
 void MediaRouterUI::InitWithPresentationSessionRequest(
     content::WebContents* initiator,
     const base::WeakPtr<PresentationServiceDelegateImpl>& delegate,
-    scoped_ptr<CreatePresentationConnectionRequest> create_session_request) {
+    std::unique_ptr<CreatePresentationConnectionRequest>
+        create_session_request) {
   DCHECK(initiator);
   DCHECK(create_session_request);
   DCHECK(!create_session_request_);