Explicitly ShutdownOnUIThread the HostContentSettingsMap when destroying the Profile.

chrome/browser/content_settings/content_settings_provider_unittest.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 "testing/gtest/include/gtest/gtest.h"
 
 #include "chrome/browser/content_settings/content_settings_mock_provider.h"
 #include "googleurl/src/gurl.h"
 
 namespace content_settings {
 
 TEST(ContentSettingsProviderTest, Mock) {
   MockDefaultProvider provider(CONTENT_SETTINGS_TYPE_COOKIES,
-                                       CONTENT_SETTING_ALLOW,
-                                       false,
-                                       true);
+                               CONTENT_SETTING_ALLOW,
+                               false,
+                               true);
   EXPECT_EQ(CONTENT_SETTING_ALLOW,
             provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
   EXPECT_EQ(CONTENT_SETTING_DEFAULT,
             provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_POPUPS));
   EXPECT_FALSE(provider.DefaultSettingIsManaged(CONTENT_SETTINGS_TYPE_COOKIES));
   EXPECT_FALSE(provider.DefaultSettingIsManaged(CONTENT_SETTINGS_TYPE_POPUPS));
   provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                 CONTENT_SETTING_BLOCK);
   EXPECT_EQ(CONTENT_SETTING_BLOCK,
             provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
@@ skipping 37 matching lines @@
   EXPECT_EQ(CONTENT_SETTING_ALLOW, mock_provider.GetContentSetting(
       url, url, CONTENT_SETTINGS_TYPE_PLUGINS, "java_plugin"));
 
   EXPECT_TRUE(mock_provider.read_only());
   mock_provider.set_setting(CONTENT_SETTING_BLOCK);
   EXPECT_EQ(CONTENT_SETTING_BLOCK, mock_provider.GetContentSetting(
       url, url, CONTENT_SETTINGS_TYPE_PLUGINS, "java_plugin"));
 }
 
 }  // namespace content_settings