Add a flag for enabling Chrome Web Store Gallery widget app

chrome/browser/about_flags.cc

 // 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.
 
 #include "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 2416 matching lines @@
     SINGLE_VALUE_TYPE(autofill::switches::kEnableAccessorySuggestionView)
   },
 #endif  // defined(OS_ANDROID)
   {
     "disable-new-video-renderer",
     IDS_FLAGS_DISABLE_NEW_VIDEO_RENDERER_NAME,
     IDS_FLAGS_DISABLE_NEW_VIDEO_RENDERER_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kDisableNewVideoRenderer)
   },
+#if defined(OS_CHROMEOS)
+  {
+    "enable-printer-app-search",
+    IDS_FLAGS_PRINTER_PROVIDER_SEARCH_APP_NAME,
+    IDS_FLAGS_PRINTER_PROVIDER_SEARCH_APP_DESCRIPTION,
+    kOsCrOS,
+    SINGLE_VALUE_TYPE(chromeos::switches::kEnablePrinterAppSearch)
+  },
+#endif  // OS_CHROMEOS
   // Temporary flag to ease the transition to standard-compliant scrollTop
   // behavior.  Will be removed shortly after http://crbug.com/157855 ships.
   {
     "scroll-top-left-interop",
     IDS_FLAGS_SCROLL_TOP_LEFT_INTEROP_NAME,
     IDS_FLAGS_SCROLL_TOP_LEFT_INTEROP_DESCRIPTION,
     kOsAll,
     ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(
         switches::kEnableBlinkFeatures, "ScrollTopLeftInterop",
         switches::kDisableBlinkFeatures, "ScrollTopLeftInterop")
@@ skipping 579 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags