Make Web Push use InstanceID tokens instead of GCM registrations

chrome/android/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/android/config.gni")
 import("//build/config/android/rules.gni")
 import("//build_overrides/v8.gni")
 import("//chrome/android/chrome_public_apk_tmpl.gni")
 import("//chrome/common/features.gni")
 import("//chrome/version.gni")
@@ skipping 320 matching lines @@
 
   deps = [
     "//base:base_java",
     "//base:base_java_test_support",
     "//chrome/android:chrome_java",
     "//chrome/android:chrome_java_resources",
     "//chrome/test/android:chrome_java_test_support",
     "//components/bookmarks/common/android:bookmarks_java",
     "//components/dom_distiller/android:dom_distiller_core_java",
     "//components/gcm_driver/android:gcm_driver_java",
+    "//components/gcm_driver/instance_id/android:instance_id_driver_java",
+    "//components/gcm_driver/instance_id/android:instance_id_driver_test_support_java",
     "//components/invalidation/impl:java",
     "//components/invalidation/impl:javatests",
     "//components/navigation_interception/android:navigation_interception_java",
     "//components/policy/android:policy_java",
     "//components/precache/android:precache_java",
     "//components/precache/android:precache_javatests",
     "//components/web_contents_delegate_android:web_contents_delegate_android_java",
     "//components/web_restrictions:web_restrictions_java",
     "//content/public/android:content_java",
     "//content/public/test/android:content_java_test_support",
@@ skipping 247 matching lines @@
 instrumentation_test_apk("chrome_sync_shell_test_apk") {
   apk_name = "ChromeSyncShellTest"
   apk_under_test = ":chrome_sync_shell_apk"
   android_manifest = chrome_sync_shell_test_apk_manifest
   deps = [
     ":chrome_sync_shell_test_apk_java",
     ":chrome_sync_shell_test_apk_manifest",
   ]
   proguard_enabled = !is_debug
 }