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

chrome/browser/media/midi_permission_context.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/media/midi_permission_context.h"
 
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "components/content_settings/core/common/permission_request_id.h"
 #include "content/public/browser/child_process_security_policy.h"
-#include "content/public/common/origin_util.h"
 #include "url/gurl.h"
 
 MidiPermissionContext::MidiPermissionContext(Profile* profile)
     : PermissionContextBase(profile, CONTENT_SETTINGS_TYPE_MIDI_SYSEX) {
 }
 
 MidiPermissionContext::~MidiPermissionContext() {
 }
 
-ContentSetting MidiPermissionContext::GetPermissionStatus(
-    const GURL& requesting_origin,
-    const GURL& embedding_origin) const {
-  if (requesting_origin.is_valid() &&
-      !content::IsOriginSecure(requesting_origin)) {
-    return CONTENT_SETTING_BLOCK;
-  }
-
-  return PermissionContextBase::GetPermissionStatus(requesting_origin,
-                                                    embedding_origin);
-}
-
-void MidiPermissionContext::DecidePermission(
-    content::WebContents* web_contents,
-    const PermissionRequestID& id,
-    const GURL& requesting_origin,
-    const GURL& embedding_origin,
-    bool user_gesture,
-    const BrowserPermissionCallback& callback) {
-  if (requesting_origin.is_valid() &&
-      !content::IsOriginSecure(requesting_origin)) {
-    NotifyPermissionSet(id, requesting_origin, embedding_origin, callback,
-                        false /* persist */, CONTENT_SETTING_BLOCK);
-    return;
-  }
-
-  PermissionContextBase::DecidePermission(
-      web_contents, id, requesting_origin,
-      embedding_origin, user_gesture, callback);
-}
-
 void MidiPermissionContext::UpdateTabContext(const PermissionRequestID& id,
                                              const GURL& requesting_frame,
                                              bool allowed) {
   TabSpecificContentSettings* content_settings =
       TabSpecificContentSettings::Get(id.render_process_id(),
                                       id.render_view_id());
   if (!content_settings)
     return;
 
   if (allowed) {
     content_settings->OnMidiSysExAccessed(requesting_frame);
 
     content::ChildProcessSecurityPolicy::GetInstance()->
         GrantSendMidiSysExMessage(id.render_process_id());
   } else {
     content_settings->OnMidiSysExAccessBlocked(requesting_frame);
   }
 }
+
+bool MidiPermissionContext::IsRestrictedToSecureOrigins() const {
+  return true;
+}