Moves CustomFrameViewAsh to common

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h

Index: chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h
diff --git a/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h b/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h
index 77ede6a9650a42e398c837a874fb2c50f52203d5..db14306953c401ba16679e7fe60792863da23fa5 100644
--- a/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h
+++ b/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.h
@@ -17,7 +17,6 @@ class TabIconView;
 class WebAppLeftHeaderView;
 
 namespace ash {
-class FrameBorderHitTestController;
 class FrameCaptionButton;
 class FrameCaptionButtonContainerView;
 class HeaderPainter;
@@ -139,10 +138,6 @@ class BrowserNonClientFrameViewAsh : public BrowserNonClientFrameView,
   // Helper class for painting the header.
   std::unique_ptr<ash::HeaderPainter> header_painter_;
 
-  // Updates the hittest bounds overrides based on the window show type.
-  std::unique_ptr<ash::FrameBorderHitTestController>
-      frame_border_hit_test_controller_;
-
   DISALLOW_COPY_AND_ASSIGN(BrowserNonClientFrameViewAsh);
 };