Port parts of base/process_util to Linux.

Review URL: http://codereview.chromium.org/6492
Patch from PaweÅ‚ Hajdan jr <[email protected]>.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@3363 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/process_posix.cc b/base/process_posix.cc
new file mode 100644
index 0000000..2bc6b0c0
--- /dev/null
+++ b/base/process_posix.cc
@@ -0,0 +1,48 @@
+// Copyright (c) 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.
+
+#include "base/process.h"
+#include "base/logging.h"
+#include "base/process_util.h"
+
+bool Process::IsProcessBackgrounded() {
+  return false;
+}
+
+bool Process::SetProcessBackgrounded(bool value) {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Process::ReduceWorkingSet() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Process::UnReduceWorkingSet() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Process::EmptyWorkingSet() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+int32 Process::pid() const {
+  if (process_ == 0)
+    return 0;
+
+  return process_util::GetProcId(process_);
+}
+
+bool Process::is_current() const {
+  return process_ == process_util::GetCurrentProcessHandle();
+}
+
+// static
+Process Process::Current() {
+  return Process(process_util::GetCurrentProcessHandle());
+}
+