Use uint16 for port numbers more pervasively.

sync/internal_api/attachments/attachment_uploader_impl_unittest.cc

Index: sync/internal_api/attachments/attachment_uploader_impl_unittest.cc
diff --git a/sync/internal_api/attachments/attachment_uploader_impl_unittest.cc b/sync/internal_api/attachments/attachment_uploader_impl_unittest.cc
index c113ac3af07d4697141fb5130caf5e344b8579c2..0a724b6892e6a8beaa5325077f21df3351162429 100644
--- a/sync/internal_api/attachments/attachment_uploader_impl_unittest.cc
+++ b/sync/internal_api/attachments/attachment_uploader_impl_unittest.cc
@@ -282,7 +282,7 @@ void AttachmentUploaderImplTest::SetUp() {
       base::Bind(&RequestHandler::HandleRequest,
                  base::Unretained(request_handler_.get())));
 
-  GURL url(base::StringPrintf("http://localhost:%d/", server_.port()));
+  GURL url(base::StringPrintf("http://localhost:%u/", server_.port()));
 
   token_service_.reset(new MockOAuth2TokenService);
   scoped_refptr<OAuth2TokenServiceRequest::TokenServiceProvider>