Parametrize Suggest polling strategy and delay. Also add a parameter

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 "components/omnibox/search_provider.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 304 matching lines @@
 
   // Keywords are updated by the InMemoryHistoryBackend only after the message
   // has been processed on the history thread. Block until history processes all
   // requests to ensure the InMemoryDatabase is the state we expect it.
   profile_.BlockUntilHistoryProcessesPendingRequests();
 
   AutocompleteClassifierFactory::GetInstance()->SetTestingFactoryAndUse(
       &profile_, &AutocompleteClassifierFactory::BuildInstanceFor);
 
   provider_ = new SearchProviderForTest(this, turl_model, &profile_);
-  provider_->kMinimumTimeBetweenSuggestQueriesMs = 0;
+  OmniboxFieldTrial::kDefaultMinimumTimeBetweenSuggestQueriesMs = 0;
 }
 
 void SearchProviderTest::TearDown() {
   base::RunLoop().RunUntilIdle();
 
   // Shutdown the provider before the profile.
   provider_ = NULL;
 }
 
 void SearchProviderTest::RunTest(TestData* cases,
@@ skipping 3112 matching lines @@
   EXPECT_EQ(base::ASCIIToUTF16("42"), matches[0].answer_type);
   EXPECT_TRUE(matches[1].answer_contents.empty());
   EXPECT_TRUE(matches[1].answer_type.empty());
   EXPECT_TRUE(matches[2].answer_contents.empty());
   EXPECT_TRUE(matches[2].answer_type.empty());
   EXPECT_TRUE(matches[3].answer_contents.empty());
   EXPECT_TRUE(matches[3].answer_type.empty());
   EXPECT_TRUE(matches[4].answer_contents.empty());
   EXPECT_TRUE(matches[4].answer_type.empty());
 }