Enable InstanceID field trial by default

components/gcm_driver/gcm_driver_desktop_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 "components/gcm_driver/gcm_driver_desktop.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/location.h"
 #include "base/macros.h"
-#include "base/metrics/field_trial.h"
 #include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/thread.h"
 #include "components/gcm_driver/crypto/gcm_encryption_provider.h"
 #include "components/gcm_driver/fake_gcm_app_handler.h"
 #include "components/gcm_driver/fake_gcm_client.h"
 #include "components/gcm_driver/fake_gcm_client_factory.h"
 #include "components/gcm_driver/gcm_app_handler.h"
@@ skipping 135 matching lines @@
   }
   void set_async_operation_completed_callback(const base::Closure& callback) {
     async_operation_completed_callback_ = callback;
   }
 
  private:
   base::ScopedTempDir temp_dir_;
   TestingPrefServiceSimple prefs_;
   base::MessageLoopForUI message_loop_;
   base::Thread io_thread_;
-  base::FieldTrialList field_trial_list_;
   scoped_ptr<GCMDriverDesktop> driver_;
   scoped_ptr<FakeGCMAppHandler> gcm_app_handler_;
   scoped_ptr<FakeGCMConnectionObserver> gcm_connection_observer_;
 
   base::Closure async_operation_completed_callback_;
 
   std::string registration_id_;
   GCMClient::Result registration_result_;
   std::string send_message_id_;
   GCMClient::Result send_result_;
   GCMClient::Result unregistration_result_;
   std::string p256dh_;
   std::string auth_secret_;
 
   DISALLOW_COPY_AND_ASSIGN(GCMDriverTest);
 };
 
 GCMDriverTest::GCMDriverTest()
     : io_thread_("IOThread"),
-      field_trial_list_(NULL),
       registration_result_(GCMClient::UNKNOWN_ERROR),
       send_result_(GCMClient::UNKNOWN_ERROR),
       unregistration_result_(GCMClient::UNKNOWN_ERROR) {
 }
 
 GCMDriverTest::~GCMDriverTest() {
 }
 
 void GCMDriverTest::SetUp() {
   GCMChannelStatusSyncer::RegisterPrefs(prefs_.registry());
@@ skipping 742 matching lines @@
 GCMChannelStatusSyncerTest::GCMChannelStatusSyncerTest() {
 }
 
 GCMChannelStatusSyncerTest::~GCMChannelStatusSyncerTest() {
 }
 
 void GCMChannelStatusSyncerTest::SetUp() {
   GCMDriverTest::SetUp();
 
   url_fetcher_factory_.set_remove_fetcher_on_delete(true);
-
-  // Turn on all-user support.
-  ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial("GCM", "Enabled"));
 }
 
 void GCMChannelStatusSyncerTest::CompleteGCMChannelStatusRequest(
     bool enabled, int poll_interval_seconds) {
   sync_pb::ExperimentStatusResponse response_proto;
   sync_pb::ExperimentsSpecifics* experiment_specifics =
       response_proto.add_experiment();
   experiment_specifics->mutable_gcm_channel()->set_enabled(enabled);
 
   if (poll_interval_seconds)
@@ skipping 416 matching lines @@
   PumpUILoop();
   EXPECT_EQ(GCMClient::UNKNOWN_ERROR, unregistration_result());
 
   // DeleteToken operation will be invoked after GCMClient becomes ready.
   GetGCMClient()->PerformDelayedStart();
   WaitForAsyncOperation();
   EXPECT_EQ(GCMClient::SUCCESS, unregistration_result());
 }
 
 }  // namespace gcm