Add help link when Bluetooth adapter is off for WebBluetooth chooser

chrome/browser/chooser_controller/mock_chooser_controller.h

Index: chrome/browser/chooser_controller/mock_chooser_controller.h
diff --git a/chrome/browser/chooser_controller/mock_chooser_controller.h b/chrome/browser/chooser_controller/mock_chooser_controller.h
index 06fac53e594ff530d067b5e160c830520b66027a..294b03fc277a5d5855d37e3c1ec17145db78df2f 100644
--- a/chrome/browser/chooser_controller/mock_chooser_controller.h
+++ b/chrome/browser/chooser_controller/mock_chooser_controller.h
@@ -38,6 +38,7 @@ class MockChooserController : public ChooserController {
   MOCK_METHOD0(Cancel, void());
   MOCK_METHOD0(Close, void());
   MOCK_CONST_METHOD0(OpenHelpCenterUrl, void());
+  MOCK_CONST_METHOD0(OpenAdapterOffHelpUrl, void());
 
   void OnAdapterPresenceChanged(
       content::BluetoothChooser::AdapterPresence presence);
@@ -72,7 +73,6 @@ class MockChooserController : public ChooserController {
   };
 
   std::vector<OptionInfo> options_;
-  base::string16 no_options_text_;
   base::string16 status_text_;
 
   DISALLOW_COPY_AND_ASSIGN(MockChooserController);