Remove PrefServiceSimple, replacing it with PrefService and PrefRegistrySimple.

chrome/browser/about_flags_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/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/about_flags.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
@@ skipping 68 matching lines @@
     "",
     "",
     kMultiChoices,
     arraysize(kMultiChoices)
   },
 };
 
 class AboutFlagsTest : public ::testing::Test {
  protected:
   AboutFlagsTest() {
-    prefs_.RegisterListPref(prefs::kEnabledLabsExperiments);
+    prefs_.registrar()->RegisterListPref(prefs::kEnabledLabsExperiments);
     testing::ClearState();
   }
 
   virtual void SetUp() {
     for (size_t i = 0; i < arraysize(kExperiments); ++i)
       kExperiments[i].supported_platforms = GetCurrentPlatform();
 
     int os_other_than_current = 1;
     while (os_other_than_current == GetCurrentPlatform())
       os_other_than_current <<= 1;
@@ skipping 216 matching lines @@
   testing::SetExperiments(NULL, 0);
   size_t count;
   const Experiment* experiments = testing::GetExperiments(&count);
     for (size_t i = 0; i < count; ++i) {
     std::string name = experiments->internal_name;
     EXPECT_EQ(std::string::npos, name.find(testing::kMultiSeparator)) << i;
   }
 }
 
 }  // namespace about_flags