Add pref entry for virtual keyboard

chrome/browser/chromeos/input_method/virtual_keyboard_selector_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 "chrome/browser/chromeos/input_method/virtual_keyboard_selector.h"
 
 #include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // For EXPECT_TRUE calls below. The operator has to be in the global namespace.
@@ skipping 353 matching lines @@
   selector.AddVirtualKeyboard(user_virtual_keyboard_2.url(),
                               user_virtual_keyboard_2.supported_layouts(),
                               user_virtual_keyboard_2.is_system());
   selector.AddVirtualKeyboard(system_virtual_keyboard_1.url(),
                               system_virtual_keyboard_1.supported_layouts(),
                               system_virtual_keyboard_1.is_system());
   selector.AddVirtualKeyboard(system_virtual_keyboard_2.url(),
                               system_virtual_keyboard_2.supported_layouts(),
                               system_virtual_keyboard_2.is_system());
 
-  // Set and then remove user pref (=NOP).
+  // Set and then remove user prefs (=NOP).
   EXPECT_TRUE(selector.SetUserPreference("a", GURL("http://system1")));
-  selector.RemoveUserPreference("a");
+  EXPECT_TRUE(selector.SetUserPreference("z", GURL("http://system2")));
+  selector.ClearUserPreference();

[bryeung, 2011/08/03 22:15:40]

There should still be a test for RemoveUserPreference

[Yusuke Sato, 2011/08/04 07:34:50]

Done.

 
   // At this point, user_virtual_keyboard_2 has the highest priority.
   ASSERT_TRUE(selector.SelectVirtualKeyboardWithoutPreferences("a"));
   EXPECT_TRUE(user_virtual_keyboard_2 ==
               *selector.SelectVirtualKeyboard("a"));
   ASSERT_TRUE(selector.SelectVirtualKeyboardWithoutPreferences("c"));
   EXPECT_TRUE(user_virtual_keyboard_2 ==
               *selector.SelectVirtualKeyboard("c"));
   ASSERT_TRUE(selector.SelectVirtualKeyboardWithoutPreferences("d"));
   EXPECT_TRUE(user_virtual_keyboard_2 ==
@@ skipping 53 matching lines @@
               *selector.SelectVirtualKeyboard("a"));
 
   // Switch back to user_virtual_keyboard_1.
   ASSERT_TRUE(selector.SelectVirtualKeyboardWithoutPreferences("c"));
   EXPECT_TRUE(user_virtual_keyboard_2 ==
               *selector.SelectVirtualKeyboard("c"));
 }
 
 }  // namespace input_method
 }  // namespace chromeos