Remove disable-embedded-shared-worker flag and shared worker process related codes.

content/worker/BUILD.gn

Index: content/worker/BUILD.gn
diff --git a/content/worker/BUILD.gn b/content/worker/BUILD.gn
deleted file mode 100644
index 3726aa806b10ca220e6f760bfa15bec1a3a2cd94..0000000000000000000000000000000000000000
--- a/content/worker/BUILD.gn
+++ /dev/null
@@ -1,32 +0,0 @@
-# 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.
-
-source_set("worker") {
-  visibility = "//content/*"
-  sources = [
-    "websharedworker_stub.cc",
-    "websharedworker_stub.h",
-    "websharedworkerclient_proxy.cc",
-    "websharedworkerclient_proxy.h",
-    "worker_main.cc",
-    "shared_worker_permission_client_proxy.cc",
-    "shared_worker_permission_client_proxy.h",
-    "worker_thread.cc",
-    "worker_thread.h",
-    "worker_webapplicationcachehost_impl.cc",
-    "worker_webapplicationcachehost_impl.h",
-    "worker_webkitplatformsupport_impl.cc",
-    "worker_webkitplatformsupport_impl.h",
-  ]
-
-  configs += [ "//content:content_implementation" ]
-
-  deps = [
-    "//base",
-    "//mojo/public/interfaces/service_provider",
-    "//skia",
-    "//third_party/WebKit/public:blink",
-  ]
-}
-