Enable Device Discovery by default on Linux, ChromeOS and Windows.

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 1450 matching lines @@
     SINGLE_VALUE_TYPE(switches::kAppsUseNativeFrame)
   },
   {
     "enable-syncfs-directory-operation",
     IDS_FLAGS_ENABLE_SYNC_DIRECTORY_OPERATION_NAME,
     IDS_FLAGS_ENABLE_SYNC_DIRECTORY_OPERATION_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kSyncfsEnableDirectoryOperation),
   },
   {
-    "enable-device-discovery",
-    IDS_FLAGS_ENABLE_DEVICE_DISCOVERY_NAME,
-    IDS_FLAGS_ENABLE_DEVICE_DISCOVERY_DESCRIPTION,
-    kOsDesktop,
-    SINGLE_VALUE_TYPE(switches::kEnableDeviceDiscovery)
+    "disable-device-discovery",
+    IDS_FLAGS_DISABLE_DEVICE_DISCOVERY_NAME,
+    IDS_FLAGS_DISABLE_DEVICE_DISCOVERY_DESCRIPTION,
+    kOsWin | kOsLinux | kOsCrOS,
+    SINGLE_VALUE_TYPE(switches::kDisableDeviceDiscovery)
   },
 #if defined(OS_MACOSX)
   {
     "enable-app-list-shim",
     IDS_FLAGS_ENABLE_APP_LIST_SHIM_NAME,
     IDS_FLAGS_ENABLE_APP_LIST_SHIM_DESCRIPTION,
     kOsMac,
     SINGLE_VALUE_TYPE(switches::kEnableAppListShim)
   },
   {
@@ skipping 57 matching lines @@
     IDS_FLAGS_ENABLE_HTML_IMPORTS_DESCRIPTION,
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kEnableHTMLImports)
   },
   {
     "high-dpi-support",
     IDS_FLAGS_HIDPI_NAME,
     IDS_FLAGS_HIDPI_DESCRIPTION,
     kOsWin,
     ENABLE_DISABLE_VALUE_TYPE_AND_VALUE(switches::kHighDPISupport,"1",
-        switches::kHighDPISupport,"0")
+                                        switches::kHighDPISupport,"0")
   },
 #if defined(OS_CHROMEOS)
   {
     "enable-quickoffice-viewing",
     IDS_FLAGS_ENABLE_QUICKOFFICE_DESKTOP_VIEWING_NAME,
     IDS_FLAGS_ENABLE_QUICKOFFICE_DESKTOP_VIEWING_DESCRIPTION,
     kOsCrOS,
     SINGLE_VALUE_TYPE(switches::kEnableQuickofficeViewing),
   },
   {
@@ skipping 568 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags