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

google_apis/gaia/oauth2_api_call_flow.h

Index: google_apis/gaia/oauth2_api_call_flow.h
diff --git a/google_apis/gaia/oauth2_api_call_flow.h b/google_apis/gaia/oauth2_api_call_flow.h
index fd4c660732baedb2d627df8e74563bf0176c117a..5aa3399e1c17288d868a430253d88b3286de85b3 100644
--- a/google_apis/gaia/oauth2_api_call_flow.h
+++ b/google_apis/gaia/oauth2_api_call_flow.h
@@ -64,9 +64,9 @@ class OAuth2ApiCallFlow : public net::URLFetcherDelegate {
   // Template method CreateApiCallUrl is used to get the URL.
   // Template method CreateApiCallBody is used to get the body.
   // The URLFether's method will be GET if body is empty, POST otherwise.
-  // Caller owns the returned instance.
-  net::URLFetcher* CreateURLFetcher(net::URLRequestContextGetter* context,
-                                    const std::string& access_token);
+  scoped_ptr<net::URLFetcher> CreateURLFetcher(
+      net::URLRequestContextGetter* context,
+      const std::string& access_token);
 
   // Helper methods to implement the state machine for the flow.
   void BeginApiCall();