arc: IPC method to set custom wallpaper.

components/arc/BUILD.gn

 # Copyright 2015 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("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 static_library("arc") {
   sources = [
     "arc_bridge_bootstrap.cc",
@@ skipping 54 matching lines @@
     "//ash:ash",
     "//base",
     "//chromeos",
     "//chromeos:power_manager_proto",
     "//components/exo",
     "//components/google/core/browser",
     "//components/onc",
     "//components/prefs",
     "//components/signin/core/account_id",
     "//components/user_manager",
+    "//content/public/browser",
     "//device/bluetooth",
     "//google_apis",
     "//ipc:ipc",
     "//ipc/mojo:mojo",
     "//mojo/edk/system",
     "//skia",
     "//third_party/re2:re2",
     "//ui/arc",
     "//ui/aura",
     "//ui/base:base",
@@ skipping 139 matching lines @@
 
   deps = [
     ":arc_standalone",
     ":arc_standalone_service",
     "//base",
     "//ipc:ipc",
     "//ipc/mojo:mojo",
     "//mojo/edk/system",
   ]
 }