Use FileDescriptorWatcher in FilePathWatcherKQueue.

components/policy/core/common/configuration_policy_provider_test.cc

 // Copyright 2013 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 "components/policy/core/common/configuration_policy_provider_test.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 115 matching lines @@
 // available for use in other tests.  Subclasses of PolicyProviderTestHarness
 // may use different values.
 const char kKeyString[] = "StringPolicy";
 const char kKeyBoolean[] = "BooleanPolicy";
 const char kKeyInteger[] = "IntegerPolicy";
 const char kKeyStringList[] = "StringListPolicy";
 const char kKeyDictionary[] = "DictionaryPolicy";
 
 }  // namespace test_keys
 
-PolicyTestBase::PolicyTestBase() {}
+PolicyTestBase::PolicyTestBase()
+#if defined(OS_POSIX)
+    : file_descriptor_watcher_(&loop_)
+#endif
+{
+}
 
 PolicyTestBase::~PolicyTestBase() {}
 
 void PolicyTestBase::SetUp() {
   const PolicyNamespace ns(POLICY_DOMAIN_CHROME, "");
   ASSERT_TRUE(RegisterSchema(ns, kTestChromeSchema));
 }
 
 void PolicyTestBase::TearDown() {
   base::RunLoop().RunUntilIdle();
@@ skipping 272 matching lines @@
   expected_bundle.Get(PolicyNamespace(POLICY_DOMAIN_EXTENSIONS,
                                       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"))
       .CopyFrom(expected_policy);
   expected_bundle.Get(PolicyNamespace(POLICY_DOMAIN_EXTENSIONS,
                                       "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"))
       .CopyFrom(expected_policy);
   EXPECT_TRUE(provider_->policies().Equals(expected_bundle));
 }
 
 }  // namespace policy