Clean up the unused Suggest field trial and make GetActiveSuggestFieldTrialHash

chrome/browser/autocomplete/search_provider_unittest.cc

 // Copyright 2012 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 "chrome/browser/autocomplete/search_provider.h"
 
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
 #include "base/run_loop.h"
 #include "base/string_util.h"
@@ skipping 150 matching lines @@
 };
 
 // static
 base::FieldTrialList* SearchProviderTest::field_trial_list_ = NULL;
 
 // static
 void SearchProviderTest::SetUpTestCase() {
   // Set up Suggest experiments.
   field_trial_list_ = new base::FieldTrialList(
       new metrics::SHA1EntropyProvider("foo"));
-  OmniboxFieldTrial::ActivateStaticTrials();
+  base::FieldTrial* trial = base::FieldTrialList::CreateFieldTrial(
+      "AutocompleteDynamicTrial_0", "DefaultGroup");
+  trial->group();
 }
 
 // static
 void SearchProviderTest::TearDownTestCase() {
   // Make sure the global instance of FieldTrialList is gone.
   delete field_trial_list_;
 }
 
 void SearchProviderTest::SetUp() {
   // Make sure that fetchers are automatically ungregistered upon destruction.
@@ skipping 1781 matching lines @@
   EXPECT_EQ(AutocompleteMatch::ACMatchClassification::URL,
             match.contents_class[0].style);
   EXPECT_EQ(4U, match.contents_class[1].offset);
   EXPECT_EQ(AutocompleteMatch::ACMatchClassification::URL |
             AutocompleteMatch::ACMatchClassification::MATCH,
             match.contents_class[1].style);
   EXPECT_EQ(5U, match.contents_class[2].offset);
   EXPECT_EQ(AutocompleteMatch::ACMatchClassification::URL,
             match.contents_class[2].style);
 }