Remove static initializer from AppListView::SetNextPaintCallback().

ui/app_list/views/app_list_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/app_list_view.h"
 
-#include "base/callback.h"
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/app_list/signin_delegate.h"
 #include "ui/app_list/views/app_list_background.h"
 #include "ui/app_list/views/app_list_main_view.h"
 #include "ui/app_list/views/search_box_view.h"
@@ skipping 16 matching lines @@
 #endif
 #if !defined(OS_CHROMEOS)
 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 #endif
 #endif  // defined(USE_AURA)
 
 namespace app_list {
 
 namespace {
 
-base::Closure g_next_paint_callback;
+void (*g_next_paint_callback)();
 
 // The distance between the arrow tip and edge of the anchor view.
 const int kArrowOffset = 10;
 
 // Determines whether the current environment supports shadows bubble borders.
 bool SupportsShadow() {
 #if defined(USE_AURA) && defined(OS_WIN)
   // Shadows are not supported on Windows Aura without Aero Glass.
   if (!ui::win::IsAeroGlassEnabled() ||
       CommandLine::ForCurrentProcess()->HasSwitch(
@@ skipping 83 matching lines @@
 void AppListView::UpdateBounds() {
   SizeToContents();
 }
 
 gfx::Size AppListView::GetPreferredSize() {
   return app_list_main_view_->GetPreferredSize();
 }
 
 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;
   }
 }
 
 bool AppListView::ShouldHandleSystemCommands() const {
   return true;
 }
 
 void AppListView::Prerender() {
   app_list_main_view_->Prerender();
 }
@@ skipping 10 matching lines @@
 
 void AppListView::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void AppListView::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 // static
-void AppListView::SetNextPaintCallback(const base::Closure& callback) {
+void AppListView::SetNextPaintCallback(void (*callback)()) {
   g_next_paint_callback = callback;
 }
 
 #if defined(OS_WIN)
 HWND AppListView::GetHWND() const {
 #if defined(USE_AURA)
   gfx::NativeWindow window =
       GetWidget()->GetTopLevelWidget()->GetNativeWindow();
   return window->GetDispatcher()->host()->GetAcceleratedWidget();
 #else
@@ skipping 142 matching lines @@
   // Whether we need to signin or not may have changed since last time we were
   // shown.
   Layout();
 }
 
 void AppListView::OnAppListModelSigninStatusChanged() {
   OnSigninStatusChanged();
 }
 
 }  // namespace app_list