Require manifests for native messaging hosts.

chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc

Index: chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
diff --git a/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc b/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
index 8b1ab223df94899acef1a7e6c0f55e6b0025d35b..cd2d0582508fd73874928dc8bbd939ce85fc5d13 100644
--- a/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
+++ b/chrome/browser/extensions/api/messaging/native_process_launcher_posix.cc
@@ -9,9 +9,32 @@
 #include "base/logging.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/process_util.h"
+#include "chrome/browser/extensions/api/messaging/native_messaging_host_manifest.h"
 
 namespace extensions {
 
+namespace {
+
+const char kNativeMessagingDirectory[] =
+#if defined(OS_MAXOSX)
+    "/Library/Chrome/NativeMessagingHosts";
+#else
+    "/etc/opt/chrome/native-messaging-hosts";
+#endif
+
+}  // namespace
+
+// static
+scoped_ptr<NativeMessagingHostManifest>
+NativeProcessLauncher::FindAndLoadManifest(
+    const std::string& native_host_name,
+    std::string* error_message) {
+  base::FilePath manifest_path =
+      base::FilePath(kNativeMessagingDirectory).Append(
+          native_host_name + ".json");
+  return NativeMessagingHostManifest::Load(manifest_path, error_message);
+}
+
 // static
 bool NativeProcessLauncher::LaunchNativeProcess(
     const base::FilePath& path,