Replace chrome_process_filter with chrome_process_util.

- move code only used by tests to chrome/test
- make a better, more portable abstraction

For now, it still only works on Windows. But this is the first step
to porting this part of code.

Patch by phajdan.jr@chromium.org: <http://codereview.chromium.org/54003>

Review URL: http://codereview.chromium.org/67004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@13476 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 63 insertions, 0 deletions

diff --git a/chrome/test/chrome_process_util_win.cc b/chrome/test/chrome_process_util_win.cc
new file mode 100644
index 0000000..b0e2e40
--- /dev/null
+++ b/chrome/test/chrome_process_util_win.cc
@@ -0,0 +1,63 @@
+// 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.
+
+#include "chrome/test/chrome_process_util.h"
+
+#include <windows.h>
+
+#include <vector>
+
+#include "base/logging.h"
+#include "base/process_util.h"
+#include "chrome/common/chrome_constants.h"
+
+namespace {
+
+class ChromeProcessFilter : public base::ProcessFilter {
+ public:
+  explicit ChromeProcessFilter(base::ProcessId browser_pid)
+      : browser_pid_(browser_pid) {}
+
+  virtual bool Includes(base::ProcessId pid, base::ProcessId parent_pid) const {
+    // Match browser process itself and its children.
+    return browser_pid_ == pid || browser_pid_ == parent_pid;
+  }
+
+ private:
+  base::ProcessId browser_pid_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeProcessFilter);
+};
+
+}  // namespace
+
+base::ProcessId ChromeBrowserProcessId(const FilePath& data_dir) {
+  HWND message_window = FindWindowEx(HWND_MESSAGE, NULL,
+                                     chrome::kMessageWindowClass,
+                                     data_dir.value().c_str());
+  if (!message_window)
+    return -1;
+
+  DWORD browser_pid = -1;
+  GetWindowThreadProcessId(message_window, &browser_pid);
+
+  return browser_pid;
+}
+
+ChromeProcessList GetRunningChromeProcesses(const FilePath& data_dir) {
+  ChromeProcessList result;
+
+  base::ProcessId browser_pid = ChromeBrowserProcessId(data_dir);
+  if (browser_pid < 0)
+    return result;
+
+  ChromeProcessFilter filter(browser_pid);
+  base::NamedProcessIterator it(chrome::kBrowserProcessExecutableName, &filter);
+
+  const ProcessEntry* process_entry;
+  while (process_entry = it.NextProcessEntry())
+    result.push_back(process_entry->th32ProcessID);
+
+  return result;
+}