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

chrome/browser/media/protected_media_identifier_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/protected_media_identifier_permission_context.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 155 matching lines @@
   // WebContents may have gone away.
   TabSpecificContentSettings* content_settings =
       TabSpecificContentSettings::Get(id.render_process_id(),
                                       id.render_view_id());
   if (content_settings) {
     content_settings->OnProtectedMediaIdentifierPermissionSet(
         requesting_frame.GetOrigin(), allowed);
   }
 }
 
+bool
+ProtectedMediaIdentifierPermissionContext::RestrictToSecureOrigins() const {
+  return false;
+}
+
 // TODO(xhwang): We should consolidate the "protected content" related pref
 // across platforms.
 bool ProtectedMediaIdentifierPermissionContext::
     IsProtectedMediaIdentifierEnabled() const {
 #if defined(OS_CHROMEOS)
   // Platform verification is not allowed in incognito or guest mode.
   if (profile()->IsOffTheRecord() || profile()->IsGuestSession()) {
     DVLOG(1) << "Protected media identifier disabled in incognito or guest "
                 "mode.";
     return false;
@@ skipping 60 matching lines @@
       content_setting = CONTENT_SETTING_BLOCK;
       persist = true;
       break;
   }
 
   NotifyPermissionSet(
       id, requesting_origin, embedding_origin, callback,
       persist, content_setting);
 }
 #endif