Explicitly ShutdownOnUIThread the HostContentSettingsMap when destroying the Profile.

chrome/browser/profiles/profile.cc

 // Copyright (c) 2011 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.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 498 matching lines @@
   }
 
   virtual net::SSLConfigService* GetSSLConfigService() {
     return profile_->GetSSLConfigService();
   }
 
   virtual HostContentSettingsMap* GetHostContentSettingsMap() {
     // Retrieve the host content settings map of the parent profile in order to
     // ensure the preferences have been migrated.
     profile_->GetHostContentSettingsMap();
-    if (!host_content_settings_map_.get())
-      host_content_settings_map_ = new HostContentSettingsMap(this);
+    if (!host_content_settings_map_.get()) {
+      host_content_settings_map_ = new HostContentSettingsMap(
+          GetPrefs(), GetExtensionService(), true);
+    }
     return host_content_settings_map_.get();
   }
 
   virtual HostZoomMap* GetHostZoomMap() {
     if (!host_zoom_map_)
       host_zoom_map_ = new HostZoomMap();
     return host_zoom_map_.get();
   }
 
   virtual GeolocationContentSettingsMap* GetGeolocationContentSettingsMap() {
@@ skipping 320 matching lines @@
 };
 #endif
 
 Profile* Profile::CreateOffTheRecordProfile() {
 #if defined(OS_CHROMEOS)
   if (Profile::IsGuestSession())
     return new GuestSessionProfile(this);
 #endif
   return new OffTheRecordProfileImpl(this);
 }