Revert "Use a virtual base class to provide GetWidget()."

This reverts commit b653a4a87f42657888cee0427699ab05f2f304dd.

Reason for revert: Revert for testing whether the size regression disappears.

Original change's description:
> Use a virtual base class to provide GetWidget().
> 
> This addresses issues with:
> * Failure to override both GetWidget() variants
> * Having to override just to specify which base class provides the
>   implementation
> 
> Bug: none
> Change-Id: I87ec1f524d876e4488135ecbcff54aa9591e4e47
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1996948
> Commit-Queue: Peter Kasting <[email protected]>
> Reviewed-by: Scott Violet <[email protected]>
> Reviewed-by: Allen Bauer <[email protected]>
> Cr-Commit-Position: refs/heads/master@{#730791}

[email protected],[email protected],[email protected]

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: none
Change-Id: I507a2d57d53776df407461887ca06f34b656a885
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2044877
Reviewed-by: Allen Bauer <[email protected]>
Reviewed-by: Peter Kasting <[email protected]>
Commit-Queue: Allen Bauer <[email protected]>
Cr-Commit-Position: refs/heads/master@{#739930}
diff --git a/ash/focus_cycler_unittest.cc b/ash/focus_cycler_unittest.cc
index 4e4f02f..3117bda4 100644
--- a/ash/focus_cycler_unittest.cc
+++ b/ash/focus_cycler_unittest.cc
@@ -46,11 +46,10 @@
     std::copy(accessible_panes_.begin(), accessible_panes_.end(),
               std::back_inserter(*panes));
   }
+  views::Widget* GetWidget() override { return widget_; }
+  const views::Widget* GetWidget() const override { return widget_; }
 
  private:
-  // views::WidgetDelegate:
-  const views::Widget* GetWidgetImpl() const override { return widget_; }
-
   views::Widget* widget_;
   std::vector<views::View*> accessible_panes_;
 };