Revert of Straightens outs DEPS in mojo/common

content/child/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/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//content/child/child.gni")
 
 source_set("child") {
@@ skipping 14 matching lines @@
   deps = [
     "//base",
     "//components/mime_util",
     "//components/tracing",
     "//components/tracing:startup_tracing",
     "//components/webcrypto",
     "//content/common:mojo_bindings",
     "//mojo/application/public/interfaces",
     "//mojo/common",
     "//mojo/environment:chromium",
-    "//mojo/message_pump",
     "//skia",
     "//third_party/icu",
     "//ui/base",
     "//ui/events/gestures/blink",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/native_theme",
     "//url",
   ]
 
@@ skipping 83 matching lines @@
 
   if (use_aura && is_mac) {
     # This file is already excluded on non-Mac.
     sources -= [ "npapi/webplugin_delegate_impl_mac.mm" ]
   }
 
   if (is_win || !use_aura) {
     sources -= [ "npapi/webplugin_delegate_impl_aura.cc" ]
   }
 }