[App banners] Add server-controlled experiment to disable app banners

chrome/common/chrome_switches.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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 322 matching lines @@
 extern const char kWindowPosition[];
 extern const char kWindowSize[];
 extern const char kWinHttpProxyResolver[];
 extern const char kWinJumplistAction[];
 
 #if defined(OS_ANDROID)
 extern const char kDisableCast[];
 extern const char kDisableContextualSearch[];
 extern const char kDisableZeroSuggest[];
 extern const char kEnableAccessibilityTabSwitcher[];
-extern const char kEnableAppInstallAlerts[];
 extern const char kEnableContextualSearch[];
 extern const char kEnableZeroSuggestMostVisited[];
 extern const char kEnableZeroSuggestMostVisitedWithoutSerp[];
 extern const char kEnableInstantSearchClicks[];
 #endif
 
 #if defined(USE_ASH)
 extern const char kOpenAsh[];
 #endif
 
@@ skipping 48 matching lines @@
 #if defined(OS_CHROMEOS)
 bool PowerOverlayEnabled();
 #endif
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_