Add way for PermissionContext to be automatically restricted to secure origins.

chrome/browser/media/midi_permission_context.h

Index: chrome/browser/media/midi_permission_context.h
diff --git a/chrome/browser/media/midi_permission_context.h b/chrome/browser/media/midi_permission_context.h
index 934b05e9fba2f48096db22dbad2f15d8fd2fcf40..654839adbbbb4dcc5ec272f81fb1a47544d9a0f7 100644
--- a/chrome/browser/media/midi_permission_context.h
+++ b/chrome/browser/media/midi_permission_context.h
@@ -15,22 +15,12 @@ class MidiPermissionContext : public PermissionContextBase {
   explicit MidiPermissionContext(Profile* profile);
   ~MidiPermissionContext() override;
 
-  // PermissionContextBase:
-  ContentSetting GetPermissionStatus(
-      const GURL& requesting_origin,
-      const GURL& embedding_origin) const override;
-
  private:
   // PermissionContextBase:
   void UpdateTabContext(const PermissionRequestID& id,
                         const GURL& requesting_frame,
                         bool allowed) override;
-  void DecidePermission(content::WebContents* web_contents,
-                        const PermissionRequestID& id,
-                        const GURL& requesting_origin,
-                        const GURL& embedding_origin,
-                        bool user_gesture,
-                        const BrowserPermissionCallback& callback) override;
+  bool IsRestrictedToSecureOrigins() const override;
 
   DISALLOW_COPY_AND_ASSIGN(MidiPermissionContext);
 };