Move OneWriterSeqLock and SharedMemorySeqLockBuffer from content/ to device/base/synchronization

content/common/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 if (is_mac) {
@@ skipping 214 matching lines @@
     "mojo/mojo_shell_connection_impl.cc",
     "mojo/mojo_shell_connection_impl.h",
     "navigation_gesture.h",
     "navigation_params.cc",
     "navigation_params.h",
     "net/url_fetcher.cc",
     "net/url_request_service_worker_data.cc",
     "net/url_request_service_worker_data.h",
     "net/url_request_user_data.cc",
     "net/url_request_user_data.h",
-    "one_writer_seqlock.cc",
-    "one_writer_seqlock.h",
     "origin_trials/trial_token.cc",
     "origin_trials/trial_token.h",
     "origin_trials/trial_token_validator.cc",
     "origin_trials/trial_token_validator.h",
     "origin_util.cc",
     "p2p_messages.h",
     "page_state_serialization.cc",
     "page_state_serialization.h",
     "page_zoom.cc",
     "pepper_file_util.cc",
@@ skipping 333 matching lines @@
     "//third_party/WebKit/public:mojo_bindings",
     "//ui/gfx/geometry/mojo",
     "//url/mojo:url_mojom_gurl",
     "//url/mojo:url_mojom_origin",
   ]
 
   export_class_attribute = "CONTENT_EXPORT"
   export_define = "CONTENT_IMPLEMENTATION=1"
   export_header = "content/common/content_export.h"
 }