Restore all profiles which were active when restoring the last open pages.

chrome/browser/profiles/profile_manager.h

Index: chrome/browser/profiles/profile_manager.h
diff --git a/chrome/browser/profiles/profile_manager.h b/chrome/browser/profiles/profile_manager.h
index 229d702da5aea44229ce602149548fe8736fba98..b37010327bfa5a6d86be5cab5d883f056bf53168 100644
--- a/chrome/browser/profiles/profile_manager.h
+++ b/chrome/browser/profiles/profile_manager.h
@@ -93,6 +93,13 @@ class ProfileManager : public base::NonThreadSafe,
   // Same as instance method but provides the default user_data_dir as well.
   static Profile* GetLastUsedProfile();
 
+  // Get the Profiles which are currently active, i.e., have open browsers, (or
+  // were active the last time Chrome was running).
+  std::vector<Profile*> GetLastActiveProfiles(const FilePath& user_data_dir);
+
+  // Same as instance method but provides the default user_data_dir as well.
+  static std::vector<Profile*> GetLastActiveProfiles();
+
   // Returns created profiles. Note, profiles order is NOT guaranteed to be
   // related with the creation order.
   std::vector<Profile*> GetLoadedProfiles() const;
@@ -289,6 +296,11 @@ class ProfileManager : public base::NonThreadSafe,
   scoped_ptr<ProfileShortcutManagerWin> profile_shortcut_manager_;
 #endif
 
+  // For keeping track of the last active profiles.
+  std::map<Profile*, int> browser_counts_;
+  std::vector<Profile*> active_profiles_;
+  bool shutdown_started_;
+
   DISALLOW_COPY_AND_ASSIGN(ProfileManager);
 };