Split testing_pref_service.h/.cc into two parts, generic vs. Chrome-specific.

chrome/browser/password_manager/password_manager_unittest.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 <vector>
 
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/password_manager/mock_password_store.h"
 #include "chrome/browser/password_manager/password_manager.h"
 #include "chrome/browser/password_manager/password_manager_delegate.h"
 #include "chrome/browser/password_manager/password_store.h"
 #include "chrome/browser/password_manager/password_store_factory.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
-#include "chrome/test/base/testing_pref_service.h"
+#include "chrome/test/base/testing_pref_service_syncable.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/common/frame_navigate_params.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserThread;
 using content::PasswordForm;
 using testing::_;
@@ skipping 399 matching lines @@
   // navigation occurs.
   EXPECT_CALL(delegate_,
               AddSavePasswordInfoBarIfPermitted(_)).Times(Exactly(0));
   EXPECT_CALL(*store_, AddLogin(FormMatches(form)));
 
   // Now the password manager waits for the navigation to complete.
   observed.clear();
   manager()->OnPasswordFormsParsed(observed);  // The post-navigation load.
   manager()->OnPasswordFormsRendered(observed);  // The post-navigation layout.
 }