GTTF: Use a fresh TestingBrowserProcess for each test, part #4

chrome/browser/prefs/pref_model_associator_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 "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/prefs/pref_model_associator.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
+#include "chrome/test/testing_browser_process_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-class AbstractPreferenceMergeTest : public testing::Test {
+class AbstractPreferenceMergeTest : public TestingBrowserProcessTest {
  protected:
   virtual void SetUp() {
     pref_service_ = profile_.GetPrefs();
   }
 
   void SetContentPattern(DictionaryValue* patterns_dict,
                          const std::string& expression,
                          const std::string& content_type,
                          int setting) {
     DictionaryValue* expression_dict;
@@ skipping 369 matching lines @@
   EXPECT_TRUE(MergeListPreference(prefs::kDesktopNotificationDeniedOrigins));
 }
 
 TEST_F(IndividualPreferenceMergeTest, ContentSettingsPatterns) {
   EXPECT_TRUE(MergeDictionaryPreference(prefs::kContentSettingsPatterns));
 }
 
 TEST_F(IndividualPreferenceMergeTest, GeolocationContentSettings) {
   EXPECT_TRUE(MergeDictionaryPreference(prefs::kGeolocationContentSettings));
 }