Replace OS_LINUX ifdefs with OS_POSIX & !OS_MACOSX, TOOLKIT_USES_GTK, or

content/browser/zygote_main_linux.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 "content/browser/zygote_host_linux.h"
+
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <pthread.h>
-#include <sys/epoll.h>
-#include <sys/prctl.h>
-#include <sys/signal.h>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
-#if defined(CHROMIUM_SELINUX)
-#include <selinux/selinux.h>
-#include <selinux/context.h>
-#endif
-
-#include "content/browser/zygote_host_linux.h"
-
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/eintr_wrapper.h"
 #include "base/file_path.h"
 #include "base/global_descriptors_posix.h"
 #include "base/hash_tables.h"
 #include "base/linux_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/pickle.h"
@@ skipping 11 matching lines @@
 #include "content/common/process_watcher.h"
 #include "content/common/result_codes.h"
 #include "content/common/sandbox_methods_linux.h"
 #include "content/common/set_process_title.h"
 #include "content/common/unix_domain_socket_posix.h"
 #include "media/base/media.h"
 #include "seccompsandbox/sandbox.h"
 #include "skia/ext/SkFontHost_fontconfig_control.h"
 #include "unicode/timezone.h"
 
+#if defined(OS_LINUX)
+#include <sys/epoll.h>
+#include <sys/prctl.h>
+#include <sys/signal.h>
+#else
+#include <signal.h>
+#endif
+
+#if defined(CHROMIUM_SELINUX)
+#include <selinux/selinux.h>
+#include <selinux/context.h>
+#endif
+
 #if defined(ARCH_CPU_X86_FAMILY) && !defined(CHROMIUM_SELINUX) && \
     !defined(__clang__)
 // The seccomp sandbox is enabled on all ia32 and x86-64 processor as long as
 // we aren't using SELinux or clang.
 #define SECCOMP_SANDBOX
 #endif
 
 // http://code.google.com/p/chromium/wiki/LinuxZygote
 
 static const int kBrowserDescriptor = 3;
@@ skipping 696 matching lines @@
       VLOG(1) << "Enabling experimental Seccomp sandbox.";
       sandbox_flags |= ZygoteHost::kSandboxSeccomp;
     }
   }
 #endif  // SECCOMP_SANDBOX
 
   Zygote zygote(sandbox_flags);
   // This function call can return multiple times, once per fork().
   return zygote.ProcessRequests();
 }