Move ScopedIPCSupport to mojo/edk/embedder and the mojo::edk namespace.

content/browser/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")
 import("//build/config/ui.gni")
 import("//content/browser/browser.gni")
 import("//media/media_options.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 
@@ skipping 46 matching lines @@
     "//crypto",
     "//device/battery",
     "//device/bluetooth",
     "//device/vibration",
     "//gin",
     "//google_apis",
     "//gpu",
     "//gpu/command_buffer/client:gles2_implementation",
     "//gpu/command_buffer/client:gles2_interface",
     "//ipc/mojo",
-    "//ipc/mojo:ipc_support",
     "//media",
     "//media/gpu/ipc/client",
     "//media/midi",
     "//media/mojo/interfaces:image_capture",
     "//mojo/common",
     "//mojo/common:url_type_converters",
+    "//mojo/edk/system",
     "//mojo/public/cpp/bindings",
     "//mojo/public/js",
     "//net",
     "//net:extras",
     "//services/shell",
     "//services/shell/public/cpp",
     "//services/shell/public/interfaces",
     "//services/shell/runner/common",
     "//services/shell/runner/host:lib",
     "//services/user:lib",
@@ skipping 445 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }