Fixed crash on double profile delete operation.

chrome/browser/profiles/profile_manager.h

 // 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.
 
 // This class keeps track of the currently-active profiles in the runtime.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 
 #include <stddef.h>
@@ skipping 171 matching lines @@
 
   // Returns a ProfileAttributesStorage object which can be used to get
   // information about profiles without having to load them from disk.
   ProfileAttributesStorage& GetProfileAttributesStorage();
 
   // Returns a ProfileShortcut Manager that enables the caller to create
   // profile specfic desktop shortcuts.
   ProfileShortcutManager* profile_shortcut_manager();
 
 #if !defined(OS_ANDROID)
+  // Less strict version of ScheduleProfileForDeletion(), silently fail if
+  // profile already marked for deletion.
+  bool MaybeScheduleProfileForDeletion(const base::FilePath& profile_dir,

[achuithb, 2016/05/12 22:33:59]

comment should say something about the return value

+                                       const CreateCallback& callback);
+
   // Schedules the profile at the given path to be deleted on shutdown. If we're
   // deleting the last profile, a new one will be created in its place, and in
   // that case the callback will be called when profile creation is complete.
   void ScheduleProfileForDeletion(const base::FilePath& profile_dir,
                                   const CreateCallback& callback);
 #endif
 
   // Autoloads profiles if they are running background apps.
   void AutoloadProfiles();
 
@@ skipping 202 matching lines @@
 class ProfileManagerWithoutInit : public ProfileManager {
  public:
   explicit ProfileManagerWithoutInit(const base::FilePath& user_data_dir);
 
  protected:
   void DoFinalInitForServices(Profile*, bool) override {}
   void DoFinalInitLogging(Profile*) override {}
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_