Add functions to let tests read and control the Bluetooth chooser state.

components/html_viewer/web_test_delegate_impl.cc

Index: components/html_viewer/web_test_delegate_impl.cc
diff --git a/components/html_viewer/web_test_delegate_impl.cc b/components/html_viewer/web_test_delegate_impl.cc
index 613420a57167b81c82564d2c772c012ce18b884a..773ad69b47fc162b56b82b93e488d595d71e2a85 100644
--- a/components/html_viewer/web_test_delegate_impl.cc
+++ b/components/html_viewer/web_test_delegate_impl.cc
@@ -195,6 +195,22 @@ void WebTestDelegateImpl::SetBluetoothMockDataSet(const std::string& data_set) {
   NOTIMPLEMENTED();
 }
 
+void WebTestDelegateImpl::SetBluetoothManualChooser() {
+  NOTIMPLEMENTED();
+}
+
+std::vector<std::string>
+WebTestDelegateImpl::GetBluetoothManualChooserEvents() {
+  NOTIMPLEMENTED();
+  return std::vector<std::string>();
+}
+
+void WebTestDelegateImpl::SendBluetoothManualChooserEvent(
+    const std::string& event,
+    const std::string& argument) {
+  NOTIMPLEMENTED();
+}
+
 void WebTestDelegateImpl::SetGeofencingMockProvider(bool service_available) {
   NOTIMPLEMENTED();
 }