Add help link when Bluetooth adapter is off for WebBluetooth chooser

chrome/common/url_constants.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/common/url_constants.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "build/build_config.h"
@@ skipping 764 matching lines @@
 #endif
 
 #if defined(OS_WIN)
 const char kWindowsXPVistaDeprecationURL[] =
     "https://chrome.blogspot.com/2015/11/updates-to-chrome-platform-support.html";
 #endif
 
 const char kChooserBluetoothOverviewURL[] =
     "https://support.google.com/chrome?p=bluetooth";
 
+const char kBluetoothAdapterOffHelpURL[] =
+#if defined(OS_CHROMEOS)
+    "chrome://settings/search#Bluetooth";
+#else
+    "https://support.google.com/chrome?p=bluetooth";
+#endif
+
 const char kChooserUsbOverviewURL[] =
     "https://support.google.com/chrome?p=webusb";
 
 #if defined(OS_CHROMEOS)
 const char kEolNotificationURL[] = "https://www.google.com/chromebook/older/";
 #endif
 
 }  // namespace chrome