Remove the first-run search engine dialog/ballot.

chrome/installer/util/master_preferences_constants.h

 // Copyright (c) 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.
 //
 // This file contains the constants used to process master_preferences files
 // used by setup and first run.
 
 #ifndef CHROME_INSTALLER_UTIL_MASTER_PREFERENCES_CONSTANTS_H_
 #define CHROME_INSTALLER_UTIL_MASTER_PREFERENCES_CONSTANTS_H_
 #pragma once
@@ skipping 53 matching lines @@
 // Boolean. Register Chrome as default browser. Cmd line override present.
 extern const char kMakeChromeDefault[];
 // Boolean. Register Chrome as default browser for the current user.
 extern const char kMakeChromeDefaultForUser[];
 // Boolean. Expect to be run by an MSI installer. Cmd line override present.
 extern const char kMsi[];
 // Boolean. Support installing multiple products at once.
 extern const char kMultiInstall[];
 // Boolean. Show EULA dialog before install.
 extern const char kRequireEula[];
-// Boolean. Use experimental search engine selection dialog.
-extern const char kSearchEngineExperimentPref[];
-// Boolean. Randomize logos in experimental search engine selection dialog.
-extern const char kSearchEngineExperimentRandomizePref[];
 // Boolean. Install Chrome to system wise location. Cmd line override present.
 extern const char kSystemLevel[];
 // Boolean. Run installer in verbose mode. Cmd line override present.
 extern const char kVerboseLogging[];
 // Name of the block that contains the extensions on the master preferences.
 extern const char kExtensionsBlock[];
 }  // namespace master_preferences
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_UTIL_MASTER_PREFERENCES_CONSTANTS_H_