base: Add three helper functions to Values API.

chrome/common/json_pref_store_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/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "base/path_service.h"
@@ skipping 107 matching lines @@
   EXPECT_TRUE(actual->GetAsString(&path));
   EXPECT_EQ(some_path.value(), path);
 
   // Test reading some other data types from sub-dictionaries.
   EXPECT_EQ(PrefStore::READ_OK,
             pref_store->GetValue(kNewWindowsInTabs, &actual));
   bool boolean = false;
   EXPECT_TRUE(actual->GetAsBoolean(&boolean));
   EXPECT_TRUE(boolean);
 
-  pref_store->SetValue(kNewWindowsInTabs,
-                      Value::CreateBooleanValue(false));
+  pref_store->SetValue(kNewWindowsInTabs, base::FalseValue());
   EXPECT_EQ(PrefStore::READ_OK,
             pref_store->GetValue(kNewWindowsInTabs, &actual));
   EXPECT_TRUE(actual->GetAsBoolean(&boolean));
   EXPECT_FALSE(boolean);
 
   EXPECT_EQ(PrefStore::READ_OK, pref_store->GetValue(kMaxTabs, &actual));
   int integer = 0;
   EXPECT_TRUE(actual->GetAsInteger(&integer));
   EXPECT_EQ(20, integer);
   pref_store->SetValue(kMaxTabs, Value::CreateIntegerValue(10));
@@ skipping 97 matching lines @@
   pref_store->ReadPrefsAsync(mock_error_delegate);
 
   EXPECT_CALL(mock_observer, OnInitializationCompleted(true)).Times(1);
   EXPECT_CALL(*mock_error_delegate,
               OnError(PersistentPrefStore::PREF_READ_ERROR_NO_FILE)).Times(1);
   message_loop_.RunAllPending();
   pref_store->RemoveObserver(&mock_observer);
 
   EXPECT_FALSE(pref_store->ReadOnly());
 }