[GCM] DCHECK should not be used since it will skip the code inside

components/gcm_driver/gcm_channel_status_request_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop/message_loop.h"
 #include "components/gcm_driver/gcm_channel_status_request.h"
 #include "net/url_request/test_url_fetcher_factory.h"
 #include "net/url_request/url_request_test_util.h"
 #include "sync/protocol/experiment_status.pb.h"
 #include "sync/protocol/experiments_specifics.pb.h"
@@ skipping 90 matching lines @@
 }
 
 void GCMChannelStatusRequestTest::OnRequestCompleted(
     bool update_received, bool enabled, int poll_interval_seconds) {
   request_callback_invoked_ = true;
   update_received_ = update_received;
   enabled_ = enabled;
   poll_interval_seconds_ = poll_interval_seconds;
 }
 
+TEST_F(GCMChannelStatusRequestTest, RequestData) {
+  StartRequest();
+
+  net::TestURLFetcher* fetcher = url_fetcher_factory_.GetFetcherByID(0);
+  ASSERT_TRUE(fetcher);
+
+  EXPECT_EQ(GURL(request_->channel_status_request_url_),
+            fetcher->GetOriginalURL());
+
+  net::HttpRequestHeaders headers;
+  fetcher->GetExtraRequestHeaders(&headers);
+  std::string user_agent_header;
+  headers.GetHeader("User-Agent", &user_agent_header);
+  EXPECT_FALSE(user_agent_header.empty());
+  EXPECT_EQ(request_->user_agent_, user_agent_header);
+
+  std::string upload_data = fetcher->upload_data();
+  EXPECT_FALSE(upload_data.empty());
+  sync_pb::ExperimentStatusRequest proto_data;
+  proto_data.ParseFromString(upload_data);
+  EXPECT_EQ(1, proto_data.experiment_name_size());
+  EXPECT_EQ("gcm_channel", proto_data.experiment_name(0));
+}
+
 TEST_F(GCMChannelStatusRequestTest, ResponseHttpStatusNotOK) {
   StartRequest();
   SetResponseStatusAndString(net::HTTP_UNAUTHORIZED, "");
   CompleteFetch();
 
   EXPECT_FALSE(request_callback_invoked_);
 }
 
 TEST_F(GCMChannelStatusRequestTest, ResponseEmpty) {
   StartRequest();
@@ skipping 85 matching lines @@
   SetResponseProtoData(GCM_DISABLED, poll_interval_seconds);
   CompleteFetch();
 
   EXPECT_TRUE(request_callback_invoked_);
   EXPECT_TRUE(update_received_);
   EXPECT_FALSE(enabled_);
   EXPECT_EQ(poll_interval_seconds, poll_interval_seconds_);
 }
 
 }  // namespace gcm