Move kill switch and secure origin checking logic

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 "build/build_config.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/permissions/permission_util.h"
@@ skipping 65 matching lines @@
       web_contents, requesting_origin,
       base::Bind(&ProtectedMediaIdentifierPermissionContext::
                      OnPlatformVerificationConsentResponse,
                  weak_factory_.GetWeakPtr(), web_contents, id,
                  requesting_origin, embedding_origin, callback));
   pending_requests_.insert(
       std::make_pair(web_contents, std::make_pair(widget, id)));
 }
 #endif  // defined(OS_CHROMEOS)
 
-ContentSetting ProtectedMediaIdentifierPermissionContext::GetPermissionStatus(
-      const GURL& requesting_origin,
-      const GURL& embedding_origin) const {
+ContentSetting
+ProtectedMediaIdentifierPermissionContext::GetPermissionStatusInternal(
+    const GURL& requesting_origin,
+    const GURL& embedding_origin) const {
   DVLOG(1) << __func__ << ": (" << requesting_origin.spec() << ", "
            << embedding_origin.spec() << ")";
 
   if (!requesting_origin.is_valid() || !embedding_origin.is_valid() ||
       !IsProtectedMediaIdentifierEnabled()) {
     return CONTENT_SETTING_BLOCK;
   }
 
-  ContentSetting content_setting = PermissionContextBase::GetPermissionStatus(
-      requesting_origin, embedding_origin);
+  ContentSetting content_setting =
+      PermissionContextBase::GetPermissionStatusInternal(requesting_origin,
+                                                         embedding_origin);
   DCHECK(content_setting == CONTENT_SETTING_ALLOW ||
          content_setting == CONTENT_SETTING_BLOCK ||
          content_setting == CONTENT_SETTING_ASK);
 
   return content_setting;
 }
 
 void ProtectedMediaIdentifierPermissionContext::CancelPermissionRequest(
     content::WebContents* web_contents,
     const PermissionRequestID& id) {
@@ skipping 114 matching lines @@
       content_setting = CONTENT_SETTING_BLOCK;
       persist = true;
       break;
   }
 
   NotifyPermissionSet(
       id, requesting_origin, embedding_origin, callback,
       persist, content_setting);
 }
 #endif