Add test for WebBluetooth chooser spinner, status text and rescan button

chrome/browser/ui/views/chooser_content_view.cc

 // Copyright 2016 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/ui/views/chooser_content_view.h"
 
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/views/controls/link.h"
 #include "ui/views/controls/styled_label.h"
 #include "ui/views/controls/table/table_view.h"
 #include "ui/views/controls/throbber.h"
 #include "ui/views/layout/fill_layout.h"
 
 namespace {
 
 const int kChooserWidth = 330;
 
 const int kChooserHeight = 220;
 
-const int kThrobberDiameter = 50;
+const int kThrobberDiameter = 24;
 
 }  // namespace
 
 ChooserContentView::ChooserContentView(
     views::TableViewObserver* table_view_observer,
     std::unique_ptr<ChooserController> chooser_controller)
     : chooser_controller_(std::move(chooser_controller)) {
   chooser_controller_->set_view(this);
   std::vector<ui::TableColumn> table_columns;
   table_columns.push_back(ui::TableColumn());
@@ skipping 119 matching lines @@
   return button == ui::DIALOG_BUTTON_OK
              ? chooser_controller_->GetOkButtonLabel()
              : l10n_util::GetStringUTF16(IDS_DEVICE_CHOOSER_CANCEL_BUTTON_TEXT);
 }
 
 bool ChooserContentView::IsDialogButtonEnabled(ui::DialogButton button) const {
   return button != ui::DIALOG_BUTTON_OK ||
          !table_view_->selection_model().empty();
 }
 
-views::View* ChooserContentView::CreateExtraView() {
+views::Link* ChooserContentView::CreateExtraView() {
   discovery_state_ = new views::Link(chooser_controller_->GetStatus());
   discovery_state_->SetHandlesTooltips(false);
   discovery_state_->SetUnderline(false);
   discovery_state_->set_listener(this);
   return discovery_state_;
 }
 
 views::StyledLabel* ChooserContentView::CreateFootnoteView() {
   base::string16 link =
       l10n_util::GetStringUTF16(IDS_DEVICE_CHOOSER_GET_HELP_LINK_TEXT);
@@ skipping 20 matching lines @@
 }
 
 void ChooserContentView::UpdateTableView() {
   if (chooser_controller_->NumOptions() == 0) {
     table_view_->OnModelChanged();
     table_view_->SetEnabled(false);
   } else {
     table_view_->SetEnabled(true);
   }
 }