Adjust URLFetcher::Create API so that object is returned as scoped_ptr.

device/test/usb_test_gadget_impl.cc

Index: device/test/usb_test_gadget_impl.cc
diff --git a/device/test/usb_test_gadget_impl.cc b/device/test/usb_test_gadget_impl.cc
index 2eea05808acc1bc825d332df275b47e286469707..26a318f39ee8ffdfb71bdddab782b0f63c20598b 100644
--- a/device/test/usb_test_gadget_impl.cc
+++ b/device/test/usb_test_gadget_impl.cc
@@ -123,8 +123,8 @@ scoped_ptr<net::URLFetcher> CreateURLFetcher(
     const GURL& url,
     net::URLFetcher::RequestType request_type,
     net::URLFetcherDelegate* delegate) {
-  scoped_ptr<net::URLFetcher> url_fetcher(
-      net::URLFetcher::Create(url, request_type, delegate));
+  scoped_ptr<net::URLFetcher> url_fetcher =
+      net::URLFetcher::Create(url, request_type, delegate);
 
   url_fetcher->SetRequestContext(request_context_getter.get());