Center and change the aspect ratio for the experimental app list. [Win]

chrome/browser/ui/app_list/app_list_positioner.cc

Index: chrome/browser/ui/app_list/app_list_positioner.cc
diff --git a/chrome/browser/ui/app_list/app_list_positioner.cc b/chrome/browser/ui/app_list/app_list_positioner.cc
index 968b53ac105f58bd8661cecd518686c5a3e8a783..6593977d0bb81719952d919abdbb89c919711a0e 100644
--- a/chrome/browser/ui/app_list/app_list_positioner.cc
+++ b/chrome/browser/ui/app_list/app_list_positioner.cc
@@ -32,6 +32,10 @@ void AppListPositioner::WorkAreaInset(int left,
   display_.set_work_area(work_area);
 }
 
+gfx::Point AppListPositioner::GetAnchorPointForScreenCenter() const {
+  return display_.bounds().CenterPoint();
+}
+
 gfx::Point AppListPositioner::GetAnchorPointForScreenCorner(
     ScreenCorner corner) const {
   const gfx::Rect& screen_rect = display_.bounds();