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

chrome/browser/ui/views/global_error_bubble_view_unittest.cc

Index: chrome/browser/ui/views/global_error_bubble_view_unittest.cc
diff --git a/chrome/browser/ui/views/global_error_bubble_view_unittest.cc b/chrome/browser/ui/views/global_error_bubble_view_unittest.cc
index 1ea39793f2d8450c7501a71083755a2856635d89..4c2c545117595a50b1225d3688a8a94fdcb2a5d0 100644
--- a/chrome/browser/ui/views/global_error_bubble_view_unittest.cc
+++ b/chrome/browser/ui/views/global_error_bubble_view_unittest.cc
@@ -16,6 +16,7 @@
 #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;
@@ -87,6 +88,7 @@ class GlobalErrorBubbleViewTest : public testing::Test {
             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_;