Fixed crash on double profile delete operation.

chrome/browser/profiles/profile_manager.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 "chrome/browser/profiles/profile_manager.h"
 
 #include <stdint.h>
 
 #include <set>
 #include <string>
@@ skipping 708 matching lines @@
 
 ProfileAttributesStorage& ProfileManager::GetProfileAttributesStorage() {
   return GetProfileInfoCache();
 }
 
 ProfileShortcutManager* ProfileManager::profile_shortcut_manager() {
   return profile_shortcut_manager_.get();
 }
 
 #if !defined(OS_ANDROID)
+bool ProfileManager::MaybeScheduleProfileForDeletion(
+    const base::FilePath& profile_dir,
+    const CreateCallback& callback) {
+  if (IsProfileMarkedForDeletion(profile_dir)) {
+    LOG(WARNING) << "Profile already marked for deletion: "

[Bernhard Bauer, 2016/05/12 12:06:23]

I would not warn here if we are returning success as a flag. Customers of this
function can decide how to handle it.

+                 << profile_dir.value();
+    return false;
+  }
+  ScheduleProfileForDeletion(profile_dir, callback);
+  return true;
+}
+
 void ProfileManager::ScheduleProfileForDeletion(
     const base::FilePath& profile_dir,
     const CreateCallback& callback) {
   DCHECK(profiles::IsMultipleProfilesEnabled());
 
   // Cancel all in-progress downloads before deleting the profile to prevent a
   // "Do you want to exit Google Chrome and cancel the downloads?" prompt
   // (crbug.com/336725).
   Profile* profile = GetProfileByPath(profile_dir);
   if (profile) {
@@ skipping 885 matching lines @@
 
   FinishDeletingProfile(profile_to_delete_path, new_active_profile_path);
   if (!original_callback.is_null())
     original_callback.Run(loaded_profile, status);
 }
 #endif  // !defined(OS_ANDROID)
 
 ProfileManagerWithoutInit::ProfileManagerWithoutInit(
     const base::FilePath& user_data_dir) : ProfileManager(user_data_dir) {
 }