diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/base_paths_mac.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/base_paths_mac.mm	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,58 @@
+// 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.
+
+#include "base/base_paths_mac.h"
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/logging.h"
+#include "base/mac_util.h"
+#include "base/path_service.h"
+#include "base/string_util.h"
+
+namespace base {
+
+bool PathProviderMac(int key, FilePath* result) {
+  std::string cur;
+  switch (key) {
+    case base::FILE_EXE:
+    case base::FILE_MODULE: {
+      // Executable path can have relative references ("..") depending on
+      // how the app was launched.
+      NSString* path =
+          [[[NSBundle mainBundle] executablePath] stringByStandardizingPath];
+      cur = [path fileSystemRepresentation];
+      break;
+    }
+    case base::DIR_SOURCE_ROOT: {
+      FilePath path;
+      PathService::Get(base::DIR_EXE, &path);
+      if (mac_util::AmIBundled()) {
+        // The bundled app executables (Chromium, TestShell, etc) live five
+        // levels down, eg:
+        // src/xcodebuild/{Debug|Release}/Chromium.app/Contents/MacOS/Chromium.
+        path = path.DirName();
+        path = path.DirName();
+        path = path.DirName();
+        path = path.DirName();
+        *result = path.DirName();
+      } else {
+        // Unit tests execute two levels deep from the source root, eg:
+        // src/xcodebuild/{Debug|Release}/base_unittests
+        path = path.DirName();
+        *result = path.DirName();
+      }
+      return true;
+    }
+    default:
+      return false;
+  }
+
+  *result = FilePath(cur);
+  return true;
+}
+
+}  // namespace base