Experimental app list: Added a current page indicator to the launcher.

ui/app_list/views/app_list_background.cc

Index: ui/app_list/views/app_list_background.cc
diff --git a/ui/app_list/views/app_list_background.cc b/ui/app_list/views/app_list_background.cc
index 19085e60bb3892675ad004f109971f9485b4d355..aca3f75f23e9bc2ae51be04c409ddfd38d437837 100644
--- a/ui/app_list/views/app_list_background.cc
+++ b/ui/app_list/views/app_list_background.cc
@@ -88,7 +88,10 @@ void AppListBackground::Paint(gfx::Canvas* canvas,
       const gfx::Rect contents_view_view_bounds =
           contents_view->ConvertRectToWidget(contents_view->GetLocalBounds());
       gfx::Rect separator_rect(contents_rect);
-      separator_rect.set_y(contents_view_view_bounds.bottom());
+      // Extra kContentsSwitcherSeparatorHeight pixels so the launcher page
+      // indicator overlays the separator rect.
+      separator_rect.set_y(contents_view_view_bounds.bottom() +
+                           kContentsSwitcherSeparatorHeight);
       separator_rect.set_height(kBottomSeparatorSize);
       canvas->FillRect(separator_rect, kBottomSeparatorColor);
       int contents_switcher_top = separator_rect.bottom();