Refactor ViewsDelegate and MD-ify the icon-to-text spacing for checkbox and radiobutton

chrome/browser/ui/views/global_error_bubble_view_unittest.cc

 // Copyright 2017 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/global_error_bubble_view.h"
 
 #include <memory>
 #include <vector>
 
 #include "chrome/browser/ui/global_error/global_error.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_png_rep.h"
 #include "ui/gfx/image/image_unittest_util.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/controls/button/label_button.h"
+#include "ui/views/test/test_views_delegate.h"
 
 using ::testing::_;
 using ::testing::Return;
 using ::testing::StrictMock;
 
 namespace views {
 class FakeButtonListener : public views::ButtonListener {
  public:
   FakeButtonListener() {}
   ~FakeButtonListener() override;
@@ skipping 51 matching lines @@
             base::MakeUnique<StrictMock<MockGlobalErrorWithStandardBubble>>()),
         button_(&mock_button_listener_, base::string16()),
         view_(base::MakeUnique<GlobalErrorBubbleView>(
             &arg_view_,
             anchor_point_,
             arrow_,
             nullptr,
             mock_global_error_with_standard_bubble_->AsWeakPtr())) {}
 
  protected:
+  views::TestViewsDelegate views_delegate_;
   std::unique_ptr<StrictMock<MockGlobalErrorWithStandardBubble>>
       mock_global_error_with_standard_bubble_;
   views::View arg_view_;
   const gfx::Point anchor_point_;
   views::BubbleBorder::Arrow arrow_;
   FakeButtonListener mock_button_listener_;
   views::LabelButton button_;
   std::unique_ptr<GlobalErrorBubbleView> view_;
 
  private:
@@ skipping 63 matching lines @@
             view_->GetDialogButtonLabel(ui::DIALOG_BUTTON_OK));
   EXPECT_EQ(base::string16(),
             view_->GetDialogButtonLabel(ui::DIALOG_BUTTON_CANCEL));
   EXPECT_EQ(ui::DIALOG_BUTTON_NONE, view_->GetDialogButtons());
 
   view_->Cancel();
   view_->Accept();
 }
 
 }  // namespace views