Move kill switch and secure origin checking logic

chrome/browser/media/webrtc/media_stream_device_permission_context.cc

 // Copyright 2015 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/webrtc/media_stream_device_permission_context.h"
 #include "chrome/browser/media/webrtc/media_stream_device_permissions.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
@@ skipping 15 matching lines @@
 void MediaStreamDevicePermissionContext::RequestPermission(
     content::WebContents* web_contents,
     const PermissionRequestID& id,
     const GURL& requesting_frame,
     bool user_gesture,
     const BrowserPermissionCallback& callback) {
   NOTREACHED() << "RequestPermission is not implemented";
   callback.Run(CONTENT_SETTING_BLOCK);
 }
 
-ContentSetting MediaStreamDevicePermissionContext::GetPermissionStatus(
+ContentSetting MediaStreamDevicePermissionContext::GetPermissionStatusInternal(
     const GURL& requesting_origin,
     const GURL& embedding_origin) const {
   // TODO(raymes): Merge this policy check into content settings
   // crbug.com/244389.
   const char* policy_name = nullptr;
   const char* urls_policy_name = nullptr;
   if (content_settings_type_ == CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC) {
     policy_name = prefs::kAudioCaptureAllowed;
     urls_policy_name = prefs::kAudioCaptureAllowedUrls;
   } else {
     DCHECK(content_settings_type_ == CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
     policy_name = prefs::kVideoCaptureAllowed;
     urls_policy_name = prefs::kVideoCaptureAllowedUrls;
   }
 
   MediaStreamDevicePolicy policy = GetDevicePolicy(
       profile(), requesting_origin, policy_name, urls_policy_name);
 
   switch (policy) {
     case ALWAYS_DENY:
       return CONTENT_SETTING_BLOCK;
     case ALWAYS_ALLOW:
       return CONTENT_SETTING_ALLOW;
     default:
       DCHECK_EQ(POLICY_NOT_SET, policy);
   }
 
   // Check the content setting. TODO(raymes): currently mic/camera permission
   // doesn't consider the embedder.
-  ContentSetting setting = PermissionContextBase::GetPermissionStatus(
+  ContentSetting setting = PermissionContextBase::GetPermissionStatusInternal(
       requesting_origin, requesting_origin);
 
   if (setting == CONTENT_SETTING_DEFAULT)
     setting = CONTENT_SETTING_ASK;
 
   return setting;
 }
 
 void MediaStreamDevicePermissionContext::ResetPermission(
     const GURL& requesting_origin,
     const GURL& embedding_origin) {
   NOTREACHED() << "ResetPermission is not implemented";
 }
 
 void MediaStreamDevicePermissionContext::CancelPermissionRequest(
     content::WebContents* web_contents,
     const PermissionRequestID& id) {
   NOTREACHED() << "CancelPermissionRequest is not implemented";
 }
 
 bool MediaStreamDevicePermissionContext::IsRestrictedToSecureOrigins() const {
   // Flash currently doesn't require secure origin to use mic/camera. If we
   // return true here, it'll break the use case like http://tinychat.com.
   // TODO(raymes): Change this to true after crbug.com/526324 is fixed.
   return false;
 }