Disable RequestCoordinatorFactoryTest.BuildRequestCoordinator (flaky)

chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc

Index: chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc
diff --git a/chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc b/chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc
index 2ff93c1111be08c57ea8cb61b413de7dcdf845aa..97766c452a0d3f9b86487e35977f268375c54c65 100644
--- a/chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc
+++ b/chrome/browser/android/offline_pages/request_coordinator_factory_unittest.cc
@@ -27,7 +27,8 @@ void RequestCoordinatorFactoryTest::FlushBlockingPool() {
   content::BrowserThread::GetBlockingPool()->FlushForTesting();
 }
 
-TEST_F(RequestCoordinatorFactoryTest, BuildRequestCoordinator) {
+// Flaky on android_n5x_swarming_rel. https://crbug.com/679844
+TEST_F(RequestCoordinatorFactoryTest, DISABLED_BuildRequestCoordinator) {
   RequestCoordinatorFactory* factory = RequestCoordinatorFactory::GetInstance();
   EXPECT_NE(nullptr, factory);
   RequestCoordinator* coordinator1 =