[WIP] Speculatively launch Service Workers on mouse/touch events.

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 1007 matching lines @@
      MULTI_VALUE_TYPE(kTraceUploadURL)},
     {"enable-stale-while-revalidate",
      IDS_FLAGS_ENABLE_STALE_WHILE_REVALIDATE_NAME,
      IDS_FLAGS_ENABLE_STALE_WHILE_REVALIDATE_DESCRIPTION, kOsAll,
      FEATURE_VALUE_TYPE(features::kStaleWhileRevalidate)},
     {"enable-suggestions-with-substring-match",
      IDS_FLAGS_SUGGESTIONS_WITH_SUB_STRING_MATCH_NAME,
      IDS_FLAGS_SUGGESTIONS_WITH_SUB_STRING_MATCH_DESCRIPTION, kOsAll,
      SINGLE_VALUE_TYPE(
          autofill::switches::kEnableSuggestionsWithSubstringMatch)},
+    {"enable-speculative-launch-service-worker",
+     IDS_FLAGS_SPECULATIVE_LAUNCH_SERVICE_WORKER_NAME,
+     IDS_FLAGS_SPECULATIVE_LAUNCH_SERVICE_WORKER_DESCRIPTION, kOsAll,
+     FEATURE_VALUE_TYPE(features::kSpeculativeLaunchServiceWorker)},
     {"enable-supervised-user-managed-bookmarks-folder",
      IDS_FLAGS_SUPERVISED_USER_MANAGED_BOOKMARKS_FOLDER_NAME,
      IDS_FLAGS_SUPERVISED_USER_MANAGED_BOOKMARKS_FOLDER_DESCRIPTION,
      kOsAll,
      SINGLE_VALUE_TYPE(switches::kEnableSupervisedUserManagedBookmarksFolder)},
 #if defined(ENABLE_APP_LIST)
     {"enable-sync-app-list", IDS_FLAGS_SYNC_APP_LIST_NAME,
      IDS_FLAGS_SYNC_APP_LIST_DESCRIPTION, kOsDesktop,
      ENABLE_DISABLE_VALUE_TYPE(app_list::switches::kEnableSyncAppList,
                                app_list::switches::kDisableSyncAppList)},
@@ skipping 1072 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags