Cleanup: Fix a bunch of lint errors in chrome.

chrome/browser/chromeos/input_method/xkeyboard_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/chromeos/input_method/xkeyboard.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
@@ skipping 35 matching lines @@
   InputMethodWhitelist whitelist_;
   InputMethodUtil util_;
   scoped_ptr<XKeyboard> xkey_;
 
   MessageLoopForUI message_loop_;
   content::TestBrowserThread ui_thread_;
 };
 
 // Returns true if X display is available.
 bool DisplayAvailable() {
-  return ui::GetXDisplay() ? true : false;
+  return (ui::GetXDisplay() != NULL);
 }
 
 }  // namespace
 
 // Tests CheckLayoutName() function.
 TEST_F(XKeyboardTest, TestCheckLayoutName) {
   // CheckLayoutName should not accept non-alphanumeric characters
   // except "()-_".
   EXPECT_FALSE(XKeyboard::CheckLayoutNameForTesting("us!"));
   EXPECT_FALSE(XKeyboard::CheckLayoutNameForTesting("us; /bin/sh"));
@@ skipping 147 matching lines @@
 
   // Restore the initial state.
   EXPECT_TRUE(XKeyboard::SetAutoRepeatRate(rate));
   EXPECT_TRUE(XKeyboard::GetAutoRepeatRateForTesting(&tmp));
   EXPECT_EQ(rate.initial_delay_in_ms, tmp.initial_delay_in_ms);
   EXPECT_EQ(rate.repeat_interval_in_ms, tmp.repeat_interval_in_ms);
 }
 
 }  // namespace input_method
 }  // namespace chromeos