Revert "Fix a ton of compiler warnings."

chrome/test/ui/ui_test.cc

 // Copyright (c) 2006-2009 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/test/ui/ui_test.h"
 
 #include <set>
 #include <vector>
 
 #include "base/base_switches.h"
@@ skipping 505 matching lines @@
 #endif
     if (!base::WaitForSingleProcess(process_, timeout)) {
       // We need to force the browser to quit because it didn't quit fast
       // enough. Take no chance and kill every chrome processes.
       CleanupAppProcesses();
     }
   }
 
   // Don't forget to close the handle
   base::CloseProcessHandle(process_);
-  process_ = 0;
+  process_ = NULL;
 }
 
 void UITest::AssertAppNotRunning(const std::wstring& error_message) {
   ASSERT_EQ(0, GetBrowserProcessCount()) << error_message;
 }
 
 void UITest::CleanupAppProcesses() {
   TerminateAllChromeProcesses(user_data_dir());
 
   // Suppress spammy failures that seem to be occurring when running
@@ skipping 541 matching lines @@
       EXPECT_TRUE(file_util::ContentsEqual(generated_file, original_file));
     } else {
       EXPECT_NE(generated_file_size, original_file_size);
       EXPECT_FALSE(file_util::ContentsEqual(generated_file, original_file));
     }
   }
   if (delete_generated_file)
     EXPECT_TRUE(file_util::DieFileDie(generated_file, false));
 }