Rename InterfacePtr's WaitForIncomingMethodCall() -> WaitForIncomingResponse().

services/nacl/content_handler_main.cc

Index: services/nacl/content_handler_main.cc
diff --git a/services/nacl/content_handler_main.cc b/services/nacl/content_handler_main.cc
index 2b960c2c95ad2181614adb9b6266116b32f49866..4d1a4face67bb5ccc5076f31e7a939c5039a1510 100644
--- a/services/nacl/content_handler_main.cc
+++ b/services/nacl/content_handler_main.cc
@@ -52,7 +52,7 @@ bool TempFileForURL(mojo::URLLoaderPtr& url_loader,
   url_loader->Start(request.Pass(), [&response](mojo::URLResponsePtr r) {
     response = r.Pass();
   });
-  url_loader.WaitForIncomingMethodCall();
+  url_loader.WaitForIncomingResponse();
   if (response.is_null()) {
     LOG(FATAL) << "something went horribly wrong (missed a callback?)";
   }