[Win] Add a fast profile switcher to the Windows taskbar item.

chrome/browser/jumplist_win.h

Index: chrome/browser/jumplist_win.h
diff --git a/chrome/browser/jumplist_win.h b/chrome/browser/jumplist_win.h
index 854ab6b6b4c3fbb872ec3d8dd2663016ae76a2ad..d14335bd2f91763565e6002e7652e3563942c463 100644
--- a/chrome/browser/jumplist_win.h
+++ b/chrome/browser/jumplist_win.h
@@ -17,6 +17,8 @@
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/jumplist_updater_win.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
+#include "chrome/browser/profiles/avatar_menu.h"
+#include "chrome/browser/profiles/avatar_menu_observer.h"
 #include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/sessions/tab_restore_service_observer.h"
 #include "components/history/core/browser/history_types.h"
@@ -53,6 +55,7 @@ class Profile;
 // always delete JumpList on UI thread (the same thread it got constructed on).
 class JumpList : public TabRestoreServiceObserver,
                  public content::NotificationObserver,
+                 public AvatarMenuObserver,
                  public base::RefCountedThreadSafe<
                      JumpList, content::BrowserThread::DeleteOnUIThread> {
  public:
@@ -71,6 +74,9 @@ class JumpList : public TabRestoreServiceObserver,
   // is destroyed.
   virtual void TabRestoreServiceDestroyed(TabRestoreService* service);
 
+  // Overridden from AvatarMenuObserver:
+  virtual void OnAvatarMenuChanged(AvatarMenu* avatar_menu) override;

[tapted, 2014/11/03 23:57:06]

nit: I think this will eventually lose the `virtual`, so I'd leave that off in
case the cleanup CL wins the race.. The overrides above are also missing any
`override` since msvc doesn't check, but a cleanup CL should get those.

[noms (inactive), 2014/11/04 20:03:09]

Done. Cleaned up the other ones too.

+
   // Cancel a pending jumplist update.
   void CancelPendingUpdate();
 
@@ -134,6 +140,10 @@ class JumpList : public TabRestoreServiceObserver,
   // loaded icons.
   void CreateIconFiles(const ShellLinkItemList& item_list);
 
+  // Update the cached list of profile avatars to be used as the Profiles
+  // category JumpList icons.
+  void UpdateProfileAvatars();
+
   // Tracks FaviconService tasks.
   base::CancelableTaskTracker cancelable_task_tracker_;
 
@@ -174,6 +184,11 @@ class JumpList : public TabRestoreServiceObserver,
   // For callbacks may be run after destruction.
   base::WeakPtrFactory<JumpList> weak_ptr_factory_;
 
+  scoped_ptr<AvatarMenu> avatar_menu_;

[tapted, 2014/11/03 23:57:06]

nit: comment? (for consistency - it looks lonely)

[noms (inactive), 2014/11/04 20:03:09]

Done.

+
+  // Profile avatars used as icons by the items in the Profiles category.
+  std::vector<gfx::Image> profile_avatars_;
+
   DISALLOW_COPY_AND_ASSIGN(JumpList);
 };