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

chrome/browser/printing/cloud_print/test/cloud_print_proxy_process_browsertest.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.
 
 // Create a service process that uses a Mock to respond to the browser in order
 // to test launching the browser using the cloud print policy check command
 // line switch.
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/rand_util.h"
 #include "base/test/multiprocess_test.h"
 #include "base/test/test_timeouts.h"
 #include "base/time.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/browser/service/service_process_control.h"
 #include "chrome/browser/ui/startup/startup_browser_creator.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/service_messages.h"
 #include "chrome/common/service_process_util.h"
 #include "chrome/service/service_ipc_server.h"
 #include "chrome/service/service_process.h"
 #include "chrome/test/base/test_launcher_utils.h"
 #include "chrome/test/base/testing_browser_process.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 "chrome/test/base/testing_profile_manager.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/test/test_browser_thread.h"
 #include "ipc/ipc_descriptors.h"
 #include "ipc/ipc_multiprocess_test.h"
 #include "ipc/ipc_switches.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 496 matching lines @@
   // No expectations on run_loop being true here; that would be a race
   // condition.
   if (run_loop)
     MessageLoop::current()->Run();
 
   EXPECT_EQ("", prefs->GetString(prefs::kCloudPrintEmail));
 
   ShutdownAndWaitForExitWithTimeout(handle);
   profile_manager.DeleteTestingProfile("StartBrowserWithPolicy");
 }