Fix BinaryUploadServiceTest.IsAuthorizedValidTimer crash

Change-Id: I37c2578a6b36e0de25a889bf636e122b7d8987f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2022253Reviewed-by: Daniel Rubery <drubery@chromium.org>
Commit-Queue: Dominique Fauteux-Chapleau <domfc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#735453}

chrome/browser/safe_browsing/cloud_content_scanning/binary_upload_service_unittest.cc

@@ -449,6 +449,7 @@ TEST_F(BinaryUploadServiceTest, ReturnsAsynchronouslyWithNoFCM) {
 }
 
 TEST_F(BinaryUploadServiceTest, IsAuthorizedValidTimer) {
+  ExpectInstanceID("valid id");
   // The 24 hours timer should be started on the first IsAuthorized call.
   ValidateAuthorizationTimerIdle();
   service_->IsAuthorized(base::DoNothing());