Linux valgrind: patch up flakey test

base/process_util_unittest.cc

 // Copyright (c) 2006-2008 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/multiprocess_test.h"
 #include "base/platform_thread.h"
 #include "base/process_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 43 matching lines @@
 #define EXE_SUFFIX L".exe"
 #else
 #define EXE_SUFFIX L""
 #endif
 
 TEST_F(ProcessUtilTest, KillSlowChild) {
   remove("SlowChildProcess.die");
   int oldcount = GetProcessCount(L"base_unittests" EXE_SUFFIX, 0);
   ProcessHandle handle = this->SpawnChild(L"SlowChildProcess");
   ASSERT_NE(static_cast<ProcessHandle>(NULL), handle);
+  PlatformThread::Sleep(100);
   EXPECT_EQ(oldcount+1, GetProcessCount(L"base_unittests" EXE_SUFFIX, 0));
   FILE *fp = fopen("SlowChildProcess.die", "w");
   fclose(fp);
   EXPECT_TRUE(base::WaitForSingleProcess(handle, 5000));
   EXPECT_EQ(oldcount, GetProcessCount(L"base_unittests" EXE_SUFFIX, 0));
   base::CloseProcessHandle(handle);
 }
 
 // TODO(estade): if possible, port these 2 tests.
 #if defined(OS_WIN)
@@ skipping 149 matching lines @@
   base::CloseProcessHandle(handle);
   close(fds[0]);
   close(sockets[0]);
   close(sockets[1]);
   close(dev_null);
 }
 
 #endif  // defined(OS_POSIX)
 
 }  // namespace base