app_shell: Initial skeleton of a GCD target device setup API

extensions/shell/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("//tools/grit/grit_rule.gni")
 
 assert(enable_extensions)
 
 grit("resources") {
   source = "app_shell_resources.grd"
@@ skipping 35 matching lines @@
     "//skia",
     "//third_party/WebKit/public:blink",
     "//ui/wm",
     "//v8",
   ]
   sources = [
     "app/shell_main_delegate.cc",
     "app/shell_main_delegate.h",
     "browser/api/identity/identity_api.cc",
     "browser/api/identity/identity_api.h",
+    "browser/api/shell_gcd/shell_gcd_api.cc",
+    "browser/api/shell_gcd/shell_gcd_api.h",
     "browser/api/shell_window/shell_window_api.cc",
     "browser/api/shell_window/shell_window_api.h",
     "browser/default_shell_browser_main_delegate.cc",
     "browser/default_shell_browser_main_delegate.h",
     "browser/desktop_controller.cc",
     "browser/desktop_controller.h",
     "browser/media_capture_util.cc",
     "browser/media_capture_util.h",
     "browser/shell_app_delegate.cc",
     "browser/shell_app_delegate.h",
@@ skipping 88 matching lines @@
     version_h
   ]
   outputs = [ "$target_gen_dir/common/version.h" ]
   args = [
     "-f", rebase_path(lastchange_path, root_build_dir),
     "-e", "VERSION_FULL=\"$version_full\"",
     rebase_path(version_h, root_build_dir),
     rebase_path("$target_gen_dir/common/version.h")
   ]
 }