Enable permissions bubble flags on linux.

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 1658 matching lines @@
     "disable-ignore-autocomplete-off",
     IDS_FLAGS_DISABLE_IGNORE_AUTOCOMPLETE_OFF_NAME,
     IDS_FLAGS_DISABLE_IGNORE_AUTOCOMPLETE_OFF_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(autofill::switches::kDisableIgnoreAutocompleteOff)
   },
   {
     "enable-permissions-bubbles",
     IDS_FLAGS_ENABLE_PERMISSIONS_BUBBLES_NAME,
     IDS_FLAGS_ENABLE_PERMISSIONS_BUBBLES_DESCRIPTION,
-    kOsCrOS | kOsMac | kOsWin,
+    kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnablePermissionsBubbles)
   },
   {
     "enable-session-crashed-bubble",
     IDS_FLAGS_ENABLE_SESSION_CRASHED_BUBBLE_NAME,
     IDS_FLAGS_ENABLE_SESSION_CRASHED_BUBBLE_DESCRIPTION,
     kOsWin | kOsLinux,
     ENABLE_DISABLE_VALUE_TYPE(switches::kEnableSessionCrashedBubble,
                               switches::kDisableSessionCrashedBubble)
   },
@@ skipping 722 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags