Show Media Router toolbar icon ephemerally for MR dialogs

chrome/browser/ui/webui/media_router/media_router_test.h

Index: chrome/browser/ui/webui/media_router/media_router_test.h
diff --git a/chrome/browser/ui/webui/media_router/media_router_test.h b/chrome/browser/ui/webui/media_router/media_router_test.h
deleted file mode 100644
index 17aefa6188a198cf7a2cb00d06d2a200a7691c5a..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/webui/media_router/media_router_test.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_TEST_H_
-#define CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_TEST_H_
-
-#include "base/macros.h"
-#include "chrome/test/base/browser_with_test_window_test.h"
-
-class BrowserWindow;
-
-class MediaRouterTest : public BrowserWithTestWindowTest {
- public:
-  MediaRouterTest();
-  ~MediaRouterTest() override;
-
- protected:
-  // BrowserWithTestWindowTest override.
-  BrowserWindow* CreateBrowserWindow() override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(MediaRouterTest);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_MEDIA_ROUTER_MEDIA_ROUTER_TEST_H_