[Media Capabilities] Rename query() to decodingInfo() and MediaDecodingAbility to MediaCapabilities…

third_party/WebKit/public/platform/modules/media_capabilities/WebMediaDecodingAbility.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 WebMediaDecodingAbility_h
-#define WebMediaDecodingAbility_h
-
-#include "public/platform/WebCallbacks.h"
-
-namespace blink {
-
-// Represents a MediaDecodingAbility dictionary to be used outside of Blink.
-// This is set by consumers and send back to Blink.
-struct WebMediaDecodingAbility {
-  bool supported = false;
-  bool smooth = false;
-  bool power_efficient = false;
-};
-
-using WebMediaCapabilitiesQueryCallbacks =
-    WebCallbacks<std::unique_ptr<WebMediaDecodingAbility>, void>;
-
-}  // namespace blink
-
-#endif  // WebMediaDecodingAbility_h