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

chrome/browser/autocomplete/autocomplete_unittest.cc

Index: chrome/browser/autocomplete/autocomplete_unittest.cc
===================================================================
--- chrome/browser/autocomplete/autocomplete_unittest.cc	(revision 94076)
+++ chrome/browser/autocomplete/autocomplete_unittest.cc	(working copy)
@@ -153,8 +153,7 @@
   providers_.push_back(providerB);
 
   // Reset the controller to contain our new providers.
-  AutocompleteController* controller =
-      new AutocompleteController(providers_, &profile_);
+  AutocompleteController* controller = new AutocompleteController(providers_);
   controller_.reset(controller);
   providerA->set_listener(controller);
   providerB->set_listener(controller);
@@ -202,8 +201,7 @@
   search_provider->AddRef();
   providers_.push_back(search_provider);
 
-  AutocompleteController* controller =
-      new AutocompleteController(providers_, &profile_);
+  AutocompleteController* controller = new AutocompleteController(providers_);
   controller_.reset(controller);
 }