[OriginChip] Enable the origin chip chrome: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 <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 1623 matching lines @@
     "num-raster-threads",
     IDS_FLAGS_NUM_RASTER_THREADS_NAME,
     IDS_FLAGS_NUM_RASTER_THREADS_DESCRIPTION,
     kOsAll,
     MULTI_VALUE_TYPE(kNumRasterThreadsChoices)
   },
   {
     "origin-chip",
     IDS_FLAGS_ORIGIN_CHIP_NAME,
     IDS_FLAGS_ORIGIN_CHIP_DESCRIPTION,
-    kOsCrOS | kOsWin,
+    kOsCrOS | kOsWin | kOsLinux,
     MULTI_VALUE_TYPE(kOriginChipChoices)
   },
   {
     "origin-chip-in-omnibox",
     IDS_FLAGS_ORIGIN_CHIP_V2_NAME,
     IDS_FLAGS_ORIGIN_CHIP_V2_DESCRIPTION,
-    kOsCrOS | kOsMac | kOsWin,
+    kOsCrOS | kOsMac | kOsWin | kOsLinux,
     MULTI_VALUE_TYPE(kOriginChipV2Choices)
   },
   {
     "search-button-in-omnibox",
     IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_NAME,
     IDS_FLAGS_SEARCH_BUTTON_IN_OMNIBOX_DESCRIPTION,
     kOsCrOS | kOsMac | kOsWin,
     MULTI_VALUE_TYPE(kSearchButtonInOmniboxChoices)
   },
   {
@@ skipping 644 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags