Revert of Add a whole-app-list unit test.

ui/app_list/views/app_list_view.cc

Index: ui/app_list/views/app_list_view.cc
diff --git a/ui/app_list/views/app_list_view.cc b/ui/app_list/views/app_list_view.cc
index 20075fc137261b980612e6eedcd174099e388378..a66f34b2311ec1b6bbf7fe955f00969da3456ec0 100644
--- a/ui/app_list/views/app_list_view.cc
+++ b/ui/app_list/views/app_list_view.cc
@@ -50,8 +50,7 @@
 
 namespace {
 
-// For UMA and testing. If non-null, triggered when the app list is painted.
-base::Closure g_next_paint_callback;
+void (*g_next_paint_callback)();
 
 // The margin from the edge to the speech UI.
 const int kSpeechUIMargin = 12;
@@ -200,9 +199,9 @@
 
 void AppListView::Paint(gfx::Canvas* canvas) {
   views::BubbleDelegateView::Paint(canvas);
-  if (!g_next_paint_callback.is_null()) {
-    g_next_paint_callback.Run();
-    g_next_paint_callback.Reset();
+  if (g_next_paint_callback) {
+    g_next_paint_callback();
+    g_next_paint_callback = NULL;
   }
 }
 
@@ -244,7 +243,7 @@
 }
 
 // static
-void AppListView::SetNextPaintCallback(const base::Closure& callback) {
+void AppListView::SetNextPaintCallback(void (*callback)()) {
   g_next_paint_callback = callback;
 }