Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/tracing/tracing_ui.h

Index: content/browser/tracing/tracing_ui.h
diff --git a/content/browser/tracing/tracing_ui.h b/content/browser/tracing/tracing_ui.h
index 4e65de11a7aa7b5e7e0bc9cf3e3267f84f6ec4eb..fdbe0c197f9a7807c6a104e1def09694d7f69cc6 100644
--- a/content/browser/tracing/tracing_ui.h
+++ b/content/browser/tracing/tracing_ui.h
@@ -33,8 +33,8 @@ class CONTENT_EXPORT TracingUI : public WebUIController {
   void DoUpload(const base::ListValue* args);
   void DoUploadBase64Encoded(const base::ListValue* args);
 
-  scoped_ptr<TracingDelegate> delegate_;
-  scoped_ptr<TraceUploader> trace_uploader_;
+  std::unique_ptr<TracingDelegate> delegate_;
+  std::unique_ptr<TraceUploader> trace_uploader_;
   base::WeakPtrFactory<TracingUI> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TracingUI);