[GTK] add instant pref

chrome/browser/about_flags.cc

 // Copyright (c) 2010 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 <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 83 matching lines @@
     "cloud-print-proxy", // Do not change; see above.
     IDS_FLAGS_CLOUD_PRINT_PROXY_NAME,
     IDS_FLAGS_CLOUD_PRINT_PROXY_DESCRIPTION,
     kOsWin,
     switches::kEnableCloudPrintProxy
   },
   {
     "match-preview",  // Do not change; see above.
     IDS_FLAGS_PREDICTIVE_INSTANT_NAME,
     IDS_FLAGS_PREDICTIVE_INSTANT_DESCRIPTION,
-    kOsMac | kOsLinux,
+    kOsMac,
     switches::kEnablePredictiveInstant
   },
   {
     "verbatim-instant",  // Do not change; see above.
     IDS_FLAGS_VERBATIM_INSTANT_NAME,
     IDS_FLAGS_VERBATIM_INSTANT_DESCRIPTION,
     kOsMac | kOsLinux | kOsWin,
     switches::kEnableVerbatimInstant
   },
   // FIXME(scheib): Add Flags entry for accelerated Compositing,
@@ skipping 294 matching lines @@
     num_experiments = arraysize(kExperiments);
   } else {
     experiments = e;
     num_experiments = count;
   }
 }
 
 }  // namespace testing
 
 }  // namespace about_flags