[Suggestions Service] Enable Suggestions Service by default

components/suggestions/suggestions_service.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/suggestions/suggestions_service.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 101 matching lines @@
       thumbnail_manager_(thumbnail_manager.Pass()),
       blacklist_store_(blacklist_store.Pass()),
       scheduling_delay_(TimeDelta::FromSeconds(kDefaultSchedulingDelaySec)),
       suggestions_url_(kSuggestionsURL),
       blacklist_url_prefix_(kSuggestionsBlacklistURLPrefix),
       weak_ptr_factory_(this) {}
 
 SuggestionsService::~SuggestionsService() {}
 
 // static
-bool SuggestionsService::IsEnabled() {
-  return GetExperimentParam(kSuggestionsFieldTrialStateParam) ==
-      kSuggestionsFieldTrialStateEnabled;
-}
-
-// static
 bool SuggestionsService::IsControlGroup() {
   return GetExperimentParam(kSuggestionsFieldTrialControlParam) ==
       kSuggestionsFieldTrialStateEnabled;
 }
 
 void SuggestionsService::FetchSuggestionsData(
     SyncState sync_state,
     SuggestionsService::ResponseCallback callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   waiting_requestors_.push_back(callback);
@@ skipping 244 matching lines @@
     scheduling_delay_ = TimeDelta::FromSeconds(kDefaultSchedulingDelaySec);
   } else {
     TimeDelta candidate_delay =
         scheduling_delay_ * kSchedulingBackoffMultiplier;
     if (candidate_delay < TimeDelta::FromSeconds(kSchedulingMaxDelaySec))
       scheduling_delay_ = candidate_delay;
   }
 }
 
 }  // namespace suggestions