Fix gn_all build on gcc 4.8

chrome/browser/media/webrtc/media_stream_devices_controller_browsertest.cc

 // Copyright 2014 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 <string>
 
 #include "base/bind.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
@@ skipping 17 matching lines @@
 #include "content/public/test/mock_render_process_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class MediaStreamDevicesControllerTest : public WebRtcTestBase {
  public:
   // TODO(raymes): When crbug.com/606138 is finished and the
   // PermissionRequestManager is used to show all prompts on Android/Desktop
   // we should remove PermissionPromptDelegate and just use
   // MockPermissionPromptFactory instead. The APIs are the same.
   class TestPermissionPromptDelegate
-      : public MediaStreamDevicesController::PermissionPromptDelegate {
+      : public internal::PermissionPromptDelegate {
    public:
     void ShowPrompt(
         bool user_gesture,
         content::WebContents* web_contents,
         std::unique_ptr<MediaStreamDevicesController> controller) override {
       if (controller->IsAskingForAudio())
         last_requests_.push_back(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
       if (controller->IsAskingForVideo())
         last_requests_.push_back(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
 
@@ skipping 748 matching lines @@
       GetWebContents(), CreateRequest(example_audio_id(), example_video_id()),
       base::Bind(&MediaStreamDevicesControllerTest::OnMediaStreamResponse,
                  base::Unretained(this)));
 
   ASSERT_EQ(0u, prompt_delegate()->TotalRequestCount());
 
   ASSERT_EQ(content::MEDIA_DEVICE_KILL_SWITCH_ON, media_stream_result());
   ASSERT_FALSE(CheckDevicesListContains(content::MEDIA_DEVICE_AUDIO_CAPTURE));
   ASSERT_FALSE(CheckDevicesListContains(content::MEDIA_DEVICE_VIDEO_CAPTURE));
 }