Files required by a service now listed in manifest.

content/browser/child_process_launcher_helper_mac.cc

Index: content/browser/child_process_launcher_helper_mac.cc
diff --git a/content/browser/child_process_launcher_helper_mac.cc b/content/browser/child_process_launcher_helper_mac.cc
index 9a8bda0470ede897e8144e096bd4529eacdbf149..f9241ae5e9db288cb0c8ffbfff5b2e2e2147cf0b 100644
--- a/content/browser/child_process_launcher_helper_mac.cc
+++ b/content/browser/child_process_launcher_helper_mac.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/memory/ptr_util.h"
+#include "base/path_service.h"
 #include "base/posix/global_descriptors.h"
 #include "content/browser/bootstrap_sandbox_manager_mac.h"
 #include "content/browser/child_process_launcher.h"
@@ -146,5 +147,18 @@ void ChildProcessLauncherHelper::SetProcessBackgroundedOnLauncherThread(
     process.SetProcessBackgrounded(MachBroker::GetInstance(), background);
 }
 
+// static
+base::File ChildProcessLauncherHelper::OpenFile(
+    const base::FilePath& path,
+    base::MemoryMappedFile::Region* region) {
+  base::FilePath exe_dir;
+  bool result = base::PathService::Get(base::BasePathKey::DIR_EXE, &exe_dir);
+  DCHECK(result);
+  base::File file(exe_dir.Append(path),
+                  base::File::FLAG_OPEN | base::File::FLAG_READ);
+  *region = base::MemoryMappedFile::Region::kWholeFile;
+  return file;
+}
+
 }  //  namespace internal
 }  // namespace content