Media Capabilities: rename mediacapabilities module to media_capabilities.

third_party/WebKit/Source/modules/mediacapabilities/BUILD.gn

Index: third_party/WebKit/Source/modules/mediacapabilities/BUILD.gn
diff --git a/third_party/WebKit/Source/modules/mediacapabilities/BUILD.gn b/third_party/WebKit/Source/modules/mediacapabilities/BUILD.gn
deleted file mode 100644
index 1751211ea7b78cf0634da1085997a91153b646cf..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/mediacapabilities/BUILD.gn
+++ /dev/null
@@ -1,16 +0,0 @@
-# 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.
-
-import("//third_party/WebKit/Source/modules/modules.gni")
-
-blink_modules_sources("mediacapabilities") {
-  sources = [
-    "MediaCapabilities.cpp",
-    "MediaCapabilities.h",
-    "MediaDecodingAbility.cpp",
-    "MediaDecodingAbility.h",
-    "NavigatorMediaCapabilities.cpp",
-    "NavigatorMediaCapabilities.h",
-  ]
-}