Revert "Fix a ton of compiler warnings."

base/process_util_unittest.cc

 // Copyright (c) 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.
 
 #define _CRT_SECURE_NO_WARNINGS
 
 #include "base/command_line.h"
 #include "base/eintr_wrapper.h"
 #include "base/file_path.h"
 #include "base/multiprocess_test.h"
@@ skipping 23 matching lines @@
 #endif
 };
 
 MULTIPROCESS_TEST_MAIN(SimpleChildProcess) {
   return 0;
 }
 
 TEST_F(ProcessUtilTest, SpawnChild) {
   ProcessHandle handle = this->SpawnChild(L"SimpleChildProcess");
 
-  ASSERT_NE(0, handle);
+  ASSERT_NE(static_cast<ProcessHandle>(NULL), handle);
   EXPECT_TRUE(WaitForSingleProcess(handle, 5000));
   base::CloseProcessHandle(handle);
 }
 
 MULTIPROCESS_TEST_MAIN(SlowChildProcess) {
   // Sleep until file "SlowChildProcess.die" is created.
   FILE *fp;
   do {
     PlatformThread::Sleep(100);
     fp = fopen("SlowChildProcess.die", "r");
   } while (!fp);
   fclose(fp);
   remove("SlowChildProcess.die");
   exit(0);
   return 0;
 }
 
 TEST_F(ProcessUtilTest, KillSlowChild) {
   remove("SlowChildProcess.die");
   ProcessHandle handle = this->SpawnChild(L"SlowChildProcess");
-  ASSERT_NE(0, handle);
+  ASSERT_NE(static_cast<ProcessHandle>(NULL), handle);
   FILE *fp = fopen("SlowChildProcess.die", "w");
   fclose(fp);
   EXPECT_TRUE(base::WaitForSingleProcess(handle, 5000));
   base::CloseProcessHandle(handle);
 }
 
 // TODO(estade): if possible, port these 2 tests.
 #if defined(OS_WIN)
 TEST_F(ProcessUtilTest, EnableLFH) {
   ASSERT_TRUE(EnableLowFragmentationHeap());
@@ skipping 198 matching lines @@
 #if defined(OS_LINUX)
 TEST_F(ProcessUtilTest, GetParentProcessId) {
   base::ProcessId ppid = GetParentProcessId(GetCurrentProcId());
   EXPECT_EQ(ppid, getppid());
 }
 #endif
 
 #endif  // defined(OS_POSIX)
 
 }  // namespace base