Remove unused WebMIMERegistry

sky/engine/platform/BUILD.gn

 # 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.
 
 import("//build/config/ui.gni")
 import("//sky/engine/build/scripts/scripts.gni")
 import("//sky/engine/config.gni")
 
 # Most targets in this file are private actions so use that as the default.
 visibility = [":*"]
@@ skipping 444 matching lines @@
     "LengthBox.h",
     "LengthFunctions.cpp",
     "LengthFunctions.h",
     "LengthPoint.h",
     "LengthSize.h",
     "LifecycleContext.h",
     "LifecycleNotifier.h",
     "LifecycleObserver.h",
     "Logging.cpp",
     "Logging.h",
-    "MIMETypeFromURL.cpp",
-    "MIMETypeFromURL.h",
     "MIMETypeRegistry.cpp",
     "MIMETypeRegistry.h",
     "network/FormData.cpp",
     "network/FormData.h",
     "network/FormDataBuilder.cpp",
     "network/FormDataBuilder.h",
     "network/HTTPHeaderMap.cpp",
     "network/HTTPHeaderMap.h",
     "network/HTTPParsers.cpp",
     "network/HTTPParsers.h",
@@ skipping 312 matching lines @@
     # See https://bugs.webkit.org/show_bug.cgi?id=62916.
     # TODO(GYP)
     #'cflags': ['-marm'],
     #    'conditions': [
     #      ['OS=="android"', {
     #        'cflags!': ['-mthumb'],
     #      }],
     #    ],
   }
 }