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

chrome/browser/ui/webui/media/webrtc_logs_ui.cc

Index: chrome/browser/ui/webui/media/webrtc_logs_ui.cc
diff --git a/chrome/browser/ui/webui/media/webrtc_logs_ui.cc b/chrome/browser/ui/webui/media/webrtc_logs_ui.cc
index a893dc1c43a8c62141b8f35da6b1d85ad367ef49..11c9451fe8c7e49df67e533225cd6518f02ee9a5 100644
--- a/chrome/browser/ui/webui/media/webrtc_logs_ui.cc
+++ b/chrome/browser/ui/webui/media/webrtc_logs_ui.cc
@@ -152,7 +152,7 @@ void WebRtcLogsDOMHandler::UpdateUI() {
   for (std::vector<UploadList::UploadInfo>::iterator i = uploads.begin();
        i != uploads.end();
        ++i) {
-    scoped_ptr<base::DictionaryValue> upload(new base::DictionaryValue());
+    std::unique_ptr<base::DictionaryValue> upload(new base::DictionaryValue());
     upload->SetString("id", i->upload_id);
 
     base::string16 value_w;