Fixed crash on double profile delete operation.

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 ed8c787a0f7013e2dfebe428f6144f205532acfe..9257706b6b200d41c31322bebd87750c45cac747 100644
--- a/chrome/browser/profiles/profile_manager.h
+++ b/chrome/browser/profiles/profile_manager.h
@@ -22,6 +22,7 @@
 #include "base/threading/non_thread_safe.h"
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_metrics.h"
 #include "chrome/browser/profiles/profile_shortcut_manager.h"
 #include "chrome/browser/ui/browser_list_observer.h"
 #include "content/public/browser/notification_observer.h"
@@ -189,6 +190,13 @@ class ProfileManager : public base::NonThreadSafe,
   ProfileShortcutManager* profile_shortcut_manager();
 
 #if !defined(OS_ANDROID)
+  // Less strict version of ScheduleProfileForDeletion(), silently fail if
+  // profile already marked for deletion. Returns true if the profile scheduled
+  // for deletion.
+  bool MaybeScheduleProfileForDeletion(const base::FilePath& profile_dir,
+                                       const CreateCallback& callback,
+                                       ProfileMetrics::ProfileDelete user);
+
   // 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.