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

components/invalidation/gcm_network_channel.cc

Index: components/invalidation/gcm_network_channel.cc
diff --git a/components/invalidation/gcm_network_channel.cc b/components/invalidation/gcm_network_channel.cc
index 5d11990a40cf9f2d27619bf58795b6eed10b51c0..8f9caeda8bc1e4195499d99e1fe4410d5f5ad729 100644
--- a/components/invalidation/gcm_network_channel.cc
+++ b/components/invalidation/gcm_network_channel.cc
@@ -207,8 +207,8 @@ void GCMNetworkChannel::OnGetTokenComplete(
   access_token_ = token;
 
   DVLOG(2) << "Got access token, sending message";
-  fetcher_.reset(net::URLFetcher::Create(
-      BuildUrl(registration_id_), net::URLFetcher::POST, this));
+  fetcher_ = net::URLFetcher::Create(BuildUrl(registration_id_),
+                                     net::URLFetcher::POST, this);
   fetcher_->SetRequestContext(request_context_getter_.get());
   const std::string auth_header("Authorization: Bearer " + access_token_);
   fetcher_->AddExtraRequestHeader(auth_header);