Fix bug in NetworkContext Certificate Transparency tests.

The tests were waiting for a request to receive headers, but then
assuming that the request had in fact completed receiving the entire
response, including the body.

Bug: 869551
Cq-Include-Trybots: luci.chromium.try:linux_mojo
Change-Id: I2771bb0f786dd18e74423941364d51607fb8b7f8
Reviewed-on: https://chromium-review.googlesource.com/1159587Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Matt Menke <mmenke@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580129}

services/network/network_context_cert_transparency_unittest.cc

@@ -255,7 +255,7 @@ TEST(NetworkContextCertTransparencyAuditingDisabledTest,
       0 /* options */, request, client.CreateInterfacePtr(),
       net::MutableNetworkTrafficAnnotationTag(TRAFFIC_ANNOTATION_FOR_TESTS));
 
-  client.RunUntilResponseReceived();
+  client.RunUntilComplete();
   EXPECT_TRUE(client.has_received_response());
   EXPECT_TRUE(client.has_received_completion());
 
@@ -390,7 +390,7 @@ TEST(NetworkContextCertTransparencyAuditingEnabledTest,
       0 /* options */, request, client.CreateInterfacePtr(),
       net::MutableNetworkTrafficAnnotationTag(TRAFFIC_ANNOTATION_FOR_TESTS));
 
-  client.RunUntilResponseReceived();
+  client.RunUntilComplete();
   EXPECT_TRUE(client.has_received_response());
   EXPECT_TRUE(client.has_received_completion());