Refactor views app list services to allow more code sharing

chrome/browser/ui/views/app_list/win/activation_tracker_win.h

Index: chrome/browser/ui/views/app_list/win/activation_tracker_win.h
diff --git a/chrome/browser/ui/views/app_list/win/activation_tracker_win.h b/chrome/browser/ui/views/app_list/win/activation_tracker_win.h
index e3476241454b25aaab14934741118d8800993f6f..1fed8d466c16e517dee37ea28998a32aa4c91767 100644
--- a/chrome/browser/ui/views/app_list/win/activation_tracker_win.h
+++ b/chrome/browser/ui/views/app_list/win/activation_tracker_win.h
@@ -5,20 +5,16 @@
 #ifndef CHROME_BROWSER_UI_VIEWS_APP_LIST_WIN_ACTIVATION_TRACKER_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_APP_LIST_WIN_ACTIVATION_TRACKER_WIN_H_
 
-#include "base/basictypes.h"
-#include "base/callback.h"
+#include "base/macros.h"
 #include "base/timer/timer.h"
 #include "ui/app_list/views/app_list_view_observer.h"
 
-namespace app_list {
-class AppListView;
-}
+class AppListServiceWin;
 
 // Periodically checks to see if an AppListView has lost focus using a timer.
 class ActivationTrackerWin : public app_list::AppListViewObserver {
  public:
-  ActivationTrackerWin(app_list::AppListView* view,
-                       const base::Closure& on_should_dismiss);
+  explicit ActivationTrackerWin(AppListServiceWin* service);
   ~ActivationTrackerWin();
 
   // app_list::AppListViewObserver:
@@ -37,11 +33,7 @@ class ActivationTrackerWin : public app_list::AppListViewObserver {
   // app list).
   bool ShouldDismissAppList();
 
-  // The window to track the active state of.
-  app_list::AppListView* view_;
-
-  // Called to request |view_| be closed.
-  base::Closure on_should_dismiss_;
+  AppListServiceWin* service_;  // Weak. Owns this.
 
   // Records whether, on the previous timer tick, the taskbar had focus without
   // the right mouse button being down. We allow the taskbar to have focus for