Require manifests for native messaging hosts.

chrome/browser/extensions/api/messaging/native_process_launcher.h

Index: chrome/browser/extensions/api/messaging/native_process_launcher.h
diff --git a/chrome/browser/extensions/api/messaging/native_process_launcher.h b/chrome/browser/extensions/api/messaging/native_process_launcher.h
index cbb9bd37fc29bc69b02905dd4f417f6a7ee34679..0b71507395774a33f8c3aebf067f090c01bbaac2 100644
--- a/chrome/browser/extensions/api/messaging/native_process_launcher.h
+++ b/chrome/browser/extensions/api/messaging/native_process_launcher.h
@@ -14,6 +14,8 @@ class FilePath;
 
 namespace extensions {
 
+class NativeMessagingHostManifest;
+
 class NativeProcessLauncher {
  public:
   // Callback that's called after the process has been launched.
@@ -28,14 +30,25 @@ class NativeProcessLauncher {
   NativeProcessLauncher() {}
   virtual ~NativeProcessLauncher() {}
 
-  // Launches native host with the specified name asynchronously. |callback| is
-  // called after the process has been started. If the launcher is destroyed
-  // before the callback is called then the call is canceled and the process is
-  // killed if it has been started already.
-  virtual void Launch(const std::string& native_host_name,
+  // Finds native messaging host with the specified name and launches it
+  // asynchronously. Also checks that the specified |origin| is permitted to
+  // access the host. |callback| is called after the process has been started.
+  // If the launcher is destroyed before the callback is called then the call is
+  // canceled and the process is killed if it has been started already.
+  virtual void Launch(const std::string& origin,
+                      const std::string& native_host_name,
                       LaunchedCallback callback) const = 0;
 
  protected:
+  // The following two methods are platform specific and are implemented in
+  // platform-specific .cc files.
+
+  // Loads manifest for the native messaging host |name|.
+  static scoped_ptr<NativeMessagingHostManifest> FindAndLoadManifest(
+      const std::string& native_host_name,
+      std::string* error_message);
+
+  // Launches native messaging process.
   static bool LaunchNativeProcess(
       const base::FilePath& path,
       base::ProcessHandle* native_process_handle,