Fix gn_all build on gcc 4.8

chrome/browser/media/webrtc/media_stream_devices_controller.cc

 // Copyright (c) 2012 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_devices_controller.h"
 
 #include <map>
 #include <utility>
 
 #include "base/callback_helpers.h"
@@ skipping 235 matching lines @@
   bool video_requested_ = false;
   bool audio_blocked_ = false;
   bool video_blocked_ = false;
 
   content::MediaStreamRequestResult denial_reason_ = content::MEDIA_DEVICE_OK;
 };
 
 // Implementation of PermissionPromptDelegate which actually shows a permission
 // prompt.
 class MediaStreamDevicesController::PermissionPromptDelegateImpl
-    : public MediaStreamDevicesController::PermissionPromptDelegate {
+    : public internal::PermissionPromptDelegate {
  public:
   void ShowPrompt(
       bool user_gesture,
       content::WebContents* web_contents,
       std::unique_ptr<MediaStreamDevicesController> controller) override {
 #if defined(OS_ANDROID)
     PermissionUmaUtil::RecordPermissionPromptShown(
         controller->GetPermissionRequestType(),
         PermissionUtil::GetGestureType(user_gesture));
     if (PermissionDialogDelegate::ShouldShowDialog(user_gesture)) {
@@ skipping 130 matching lines @@
 PermissionRequestType MediaStreamDevicesController::GetPermissionRequestType()
     const {
   return PermissionRequestType::MEDIA_STREAM;
 }
 
 // static
 void MediaStreamDevicesController::RequestPermissionsWithDelegate(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback,
-    PermissionPromptDelegate* delegate) {
+    internal::PermissionPromptDelegate* delegate) {
   if (request.request_type == content::MEDIA_OPEN_DEVICE_PEPPER_ONLY) {
     MediaPermissionRequestLogger::LogRequest(
         web_contents, request.render_process_id, request.render_frame_id,
         content::IsOriginSecure(request.security_origin));
   }
 
   MediaPermissionStatus initial_permission(request);
   if (initial_permission.audio_requested() &&
       !HasAvailableDevices(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
                            request.requested_audio_device_id)) {
@@ skipping 361 matching lines @@
     }
   }
 
   // Don't approve device requests if the tab was hidden.
   // TODO(qinmin): Add a test for this. http://crbug.com/396869.
   // TODO(raymes): Shouldn't this apply to all permissions not just audio/video?
   return web_contents_->GetRenderWidgetHostView()->IsShowing();
 #endif
   return true;
 }