Media Capabilities: rename mediacapabilities module to media_capabilities.

third_party/WebKit/Source/modules/mediacapabilities/NavigatorMediaCapabilities.h

-// Copyright 2017 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 NavigatorMediaCapabilities_h
-#define NavigatorMediaCapabilities_h
-
-#include "core/frame/Navigator.h"
-#include "platform/Supplementable.h"
-
-namespace blink {
-
-class MediaCapabilities;
-class Navigator;
-
-// Provides MediaCapabilities as a supplement of Navigator as an attribute.
-class NavigatorMediaCapabilities final
-    : public GarbageCollected<NavigatorMediaCapabilities>,
-      public Supplement<Navigator> {
-  USING_GARBAGE_COLLECTED_MIXIN(NavigatorMediaCapabilities);
-
- public:
-  static MediaCapabilities* mediaCapabilities(Navigator&);
-
-  DECLARE_TRACE();
-
- private:
-  explicit NavigatorMediaCapabilities(Navigator&);
-
-  static NavigatorMediaCapabilities& from(Navigator&);
-  static const char* supplementName();
-
-  // The MediaCapabilities instance of this Navigator.
-  Member<MediaCapabilities> m_capabilities;
-};
-
-}  // namespace blink
-
-#endif  // NavigatorMediaCapabilities_h