Move PrefMember and PrefChangeRegistrar to api directory.

chrome/browser/net/chrome_network_delegate_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 "chrome/browser/net/chrome_network_delegate.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
+#include "chrome/browser/api/prefs/pref_member.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
-#include "chrome/browser/prefs/pref_member.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class ChromeNetworkDelegateTest : public testing::Test {
  protected:
   ChromeNetworkDelegateTest()
       : forwarder_(new extensions::EventRouterForwarder()) {
   }
 
   virtual void SetUp() OVERRIDE {
@@ skipping 50 matching lines @@
   bool never_throttle_requests_original_value_;
   MessageLoopForIO message_loop_;
 
   scoped_refptr<extensions::EventRouterForwarder> forwarder_;
   BooleanPrefMember pref_member_;
 };
 
 TEST_F(ChromeNetworkDelegateTest, NeverThrottleLogic) {
   NeverThrottleLogicImpl();
 }