Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/metrics/metrics_service_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.
 
 // Tests the MetricsService stat recording to make sure that the numbers are
 // what we expect.
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/path_service.h"
+#include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/metrics/metrics_service.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
@@ skipping 98 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(MetricsServiceReportingTest,
                        CheckHighEntropySourceUsed) {
   // Since the full metrics service runs in this test, we expect that
   // MetricsService returns the full entropy source at some point during
   // BrowserMain startup.
   ASSERT_TRUE(g_browser_process->metrics_service());
   EXPECT_EQ(MetricsService::LAST_ENTROPY_HIGH,
             g_browser_process->metrics_service()->entropy_source_returned());
 }