Revert of [worklets] Introduce ThreadedWorkletMessagingProxy and AnimationWorkletMessagaingProxy.

third_party/WebKit/Source/core/workers/BUILD.gn

 # Copyright 2016 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/core/core.gni")
 
 blink_core_sources("workers") {
   sources = [
     "AbstractWorker.cpp",
     "AbstractWorker.h",
@@ skipping 20 matching lines @@
     "SharedWorkerGlobalScope.cpp",
     "SharedWorkerGlobalScope.h",
     "SharedWorkerRepositoryClient.h",
     "SharedWorkerThread.cpp",
     "SharedWorkerThread.h",
     "ThreadedMessagingProxyBase.cpp",
     "ThreadedMessagingProxyBase.h",
     "ThreadedWorkletGlobalScope.cpp",
     "ThreadedWorkletGlobalScope.h",
     "ThreadedWorkletGlobalScopeProxy.h",
-    "ThreadedWorkletMessagingProxy.cpp",
-    "ThreadedWorkletMessagingProxy.h",
-    "ThreadedWorkletObjectProxy.cpp",
-    "ThreadedWorkletObjectProxy.h",
     "Worker.cpp",
     "Worker.h",
     "WorkerBackingThread.cpp",
     "WorkerBackingThread.h",
     "WorkerClients.cpp",
     "WorkerClients.h",
     "WorkerEventQueue.cpp",
     "WorkerEventQueue.h",
     "WorkerGlobalScope.cpp",
     "WorkerGlobalScope.h",
@@ skipping 22 matching lines @@
     "WorkletGlobalScope.h",
     "WorkletScriptLoader.cpp",
     "WorkletScriptLoader.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }