Move gcm_internals resources and constants to //components.

chrome/browser/resources/gcm_internals.css

-/* 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. */
-
-h1 {
-  color: rgb(74, 142, 230);
-  margin: 0;
-  padding: 0;
-}
-
-td {
-  padding: 4px;
-}
-
-tr:nth-child(odd) {
-  background-color: rgb(245, 245, 200);
-}
-
-th {
-  background-color: rgb(160, 160, 125);
-  color: rgb(255, 255, 255);
-  font-weight: bold;
-}
-
-.flexbar {
-  display: flex;
-  flex-direction: row;
-  margin: 5px;
-}
-
-#device-info tr :first-child {
-  font-weight: bold;
-  padding-right: 10px;
-  text-align: end;
-}
-
-.log-table {
-  padding: 4px;
-}