Extract device_sensors to /device via Mojofication

components/shared_memory_seqlock/BUILD.gn

 # Copyright 2015 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.
 
-static_library("mime_util") {
+static_library("shared_memory_seqlock") {
+  output_name = "shared_memory_seqlock"
   sources = [
-    "mime_util.cc",
-    "mime_util.h",
+    "one_writer_seqlock.cc",
+    "one_writer_seqlock.h",
+    "shared_memory_seqlock_buffer.h",
+    "shared_memory_seqlock_reader.cc",
+    "shared_memory_seqlock_reader.h",
   ]
 
   deps = [
     "//base",
-    "//net",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
   sources = [
-    "mime_util_unittest.cc",
+    "one_writer_seqlock_unittest.cc",
   ]
 
   deps = [
-    ":mime_util",
+    ":shared_memory_seqlock",
     "//base",
     "//testing/gtest",
   ]
 }