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

chrome/browser/ui/views/chrome_views_delegate.h

Index: chrome/browser/ui/views/chrome_views_delegate.h
diff --git a/chrome/browser/ui/views/chrome_views_delegate.h b/chrome/browser/ui/views/chrome_views_delegate.h
index c45f974e8f339705a7c398c3b810aec23eb0ff0e..8a2ac75ef1464b47669043c85f17a9f8783a05e8 100644
--- a/chrome/browser/ui/views/chrome_views_delegate.h
+++ b/chrome/browser/ui/views/chrome_views_delegate.h
@@ -62,14 +62,8 @@ class ChromeViewsDelegate : public views::ViewsDelegate {
 #endif
   scoped_refptr<base::TaskRunner> GetBlockingPoolTaskRunner() override;
 
-  gfx::Insets GetDialogButtonInsets() const override;
-  int GetDialogCloseButtonMargin() const override;
-  int GetDialogRelatedButtonHorizontalSpacing() const override;
-  int GetDialogRelatedControlVerticalSpacing() const override;
-  gfx::Insets GetDialogFrameViewInsets() const override;
-  gfx::Insets GetBubbleDialogMargins() const override;
-  int GetDialogButtonMinimumWidth() const override;
-  int GetButtonHorizontalPadding() const override;
+  gfx::Insets GetInsetsMetric(views::InsetsMetric metric) const override;
+  int GetSpacingMetric(views::SpacingMetric metric) const override;
 
  private:
 #if defined(OS_WIN)