Simplify some code in c/b/u/views.

chrome/browser/ui/views/validation_message_bubble_view.h

Index: chrome/browser/ui/views/validation_message_bubble_view.h
diff --git a/chrome/browser/ui/views/validation_message_bubble_view.h b/chrome/browser/ui/views/validation_message_bubble_view.h
index cdc6857138bfc990d57084a3ac2a8174096431ae..e1d794bb743de010371468e558a63506fde5fdf3 100644
--- a/chrome/browser/ui/views/validation_message_bubble_view.h
+++ b/chrome/browser/ui/views/validation_message_bubble_view.h
@@ -29,7 +29,6 @@ class ValidationMessageBubbleView
   ~ValidationMessageBubbleView() override;
 
   // BubbleDialogDelegateView overrides:
-  gfx::Size GetPreferredSize() const override;
   int GetDialogButtons() const override;
 
   // ValidationMessageBubble overrides:
@@ -43,8 +42,6 @@ class ValidationMessageBubbleView
       const gfx::Rect& rect_in_root_view,
       const content::RenderWidgetHostView* render_widget_host_view) const;
 
-  gfx::Size size_;
-
   DISALLOW_COPY_AND_ASSIGN(ValidationMessageBubbleView);
 };