Using ThreadTaskRunnerHandle in lieu of MessageLoopProxy in google_apis module

google_apis/gaia/ubertoken_fetcher_unittest.cc

Index: google_apis/gaia/ubertoken_fetcher_unittest.cc
diff --git a/google_apis/gaia/ubertoken_fetcher_unittest.cc b/google_apis/gaia/ubertoken_fetcher_unittest.cc
index dc1edc32b76e3f68d7466cc6ca0f18e47d179c69..58cef7c2b0189f197194c1aece3123cf5f90f0b0 100644
--- a/google_apis/gaia/ubertoken_fetcher_unittest.cc
+++ b/google_apis/gaia/ubertoken_fetcher_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "base/thread_task_runner_handle.h"
 #include "google_apis/gaia/fake_oauth2_token_service.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "net/url_request/test_url_fetcher_factory.h"
@@ -48,7 +49,7 @@ class UbertokenFetcherTest : public testing::Test {
  public:
   void SetUp() override {
     request_context_getter_ = new net::TestURLRequestContextGetter(
-        base::MessageLoopProxy::current());
+        base::ThreadTaskRunnerHandle::Get());
     fetcher_.reset(new UbertokenFetcher(&token_service_,
                                         &consumer_,
                                         GaiaConstants::kChromeSource,