Revert 94073 (broke a ton of tests) - Introduce a field trial for Instant.

chrome/browser/autocomplete/search_provider_unittest.cc

Index: chrome/browser/autocomplete/search_provider_unittest.cc
===================================================================
--- chrome/browser/autocomplete/search_provider_unittest.cc	(revision 94076)
+++ chrome/browser/autocomplete/search_provider_unittest.cc	(working copy)
@@ -153,10 +153,6 @@
   provider_ = new SearchProvider(this, &profile_);
 
   URLFetcher::set_factory(&test_factory_);
-
-  // Prevent the Instant field trial from kicking in.
-  PrefService* service = profile_.GetPrefs();
-  service->SetBoolean(prefs::kInstantEnabledOnce, true);
 }
 
 void SearchProviderTest::OnProviderUpdate(bool updated_matches) {
@@ -627,7 +623,7 @@
   ACProviders providers;
   SearchProvider* provider = provider_.release();
   providers.push_back(provider);
-  AutocompleteController controller(providers, &profile_);
+  AutocompleteController controller(providers);
   controller.set_search_provider(provider);
   provider->set_listener(&controller);
   controller.Start(ASCIIToUTF16("k t"), string16(), false, false, true,