Add breakpad component to GN build.

components/breakpad/tools/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")
-
-if (use_udev) {
-  source_set("udev_linux") {
+if (is_win) {
+  source_set("crash_service") {
     sources = [
-      "udev.cc",
-      "udev.h",
+      "crash_service.cc",
+      "crash_service.h",
     ]
 
     deps = [
       "//base",
-    ]
-
-    configs += [
-      "//build/config/linux:udev",
+      #'../breakpad/breakpad.gyp:breakpad_handler',  TODO(GYP)
+      #'../breakpad/breakpad.gyp:breakpad_sender',  TODO(GYP)
     ]
   }
 }