Web MIDI: add RequestMIDISysExPermission to BrowserContext

chrome/browser/profiles/profile_impl.h

Index: chrome/browser/profiles/profile_impl.h
diff --git a/chrome/browser/profiles/profile_impl.h b/chrome/browser/profiles/profile_impl.h
index a8ece656ed14695c5e7257e22d0d75ea6100edde..e5b813bf7e2f1519e25b603895eb5c30a1de3ed3 100644
--- a/chrome/browser/profiles/profile_impl.h
+++ b/chrome/browser/profiles/profile_impl.h
@@ -74,6 +74,12 @@ class ProfileImpl : public Profile {
       GetMediaRequestContextForStoragePartition(
           const base::FilePath& partition_path,
           bool in_memory) OVERRIDE;
+  virtual void RequestMIDISysExPermission(
+      int render_process_id,
+      int render_view_id,
+      int client_id,
+      const GURL& requesting_frame,
+      const MIDISysExPermissionCallback& callback) OVERRIDE;
   virtual content::ResourceContext* GetResourceContext() OVERRIDE;
   virtual content::GeolocationPermissionContext*
       GetGeolocationPermissionContext() OVERRIDE;