Add GCMChannelStatusRequest to talk with server for all users

components/gcm_driver/proto/BUILD.gn

Index: components/gcm_driver/proto/BUILD.gn
diff --git a/components/gcm_driver/proto/BUILD.gn b/components/gcm_driver/proto/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..bff8b7e4f3b5c5f2754e102baf8cc7a6a4c97428
--- /dev/null
+++ b/components/gcm_driver/proto/BUILD.gn
@@ -0,0 +1,11 @@
+# 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("//third_party/protobuf/proto_library.gni")
+
+proto_library("proto") {
+  sources = [
+    "gcm_channel_status.proto",
+  ]
+}