Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

chrome/browser/ui/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")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("../../chrome_browser_ui.gypi") ],
@@ skipping 85 matching lines @@
       "//components/suggestions/proto",
       "//components/url_formatter",
       "//device/nfc",
       "//media",
       "//net:net_with_v8",
       "//storage/browser",
       "//storage/common",
       "//third_party/WebKit/public:resources",
       "//third_party/adobe/flash:flapper_version_h",
       "//third_party/leveldatabase",
-      "//third_party/mojo/src/mojo/edk/system",
       "//third_party/libjingle",
       "//third_party/re2",
       "//ui/base/ime",
       "//ui/compositor",
       "//ui/surface",
       "//ui/web_dialogs",
       "//v8",
     ]
+
+    if (use_chrome_edk) {
+      deps += [ "//mojo/edk/system" ]
+    } else {
+      deps += [ "//third_party/mojo/src/mojo/edk/system" ]
+    }
   } else {
     # iOS.
     sources +=
         rebase_path(gypi_values.chrome_browser_ui_ios_sources, ".", "//chrome")
     deps += [ "//net" ]
   }
 
   if (!is_android && !is_ios) {
     sources += rebase_path(gypi_values.chrome_browser_ui_non_mobile_sources,
                            ".",
@@ skipping 213 matching lines @@
         [ "//third_party/google_toolbox_for_mac:google_toolbox_for_mac_config" ]
   } else {  # non-Mac.
     sources += rebase_path(gypi_values.chrome_browser_ui_non_mac_sources,
                            ".",
                            "//chrome")
   }
 
   if (is_win) {
     sources +=
         rebase_path(gypi_values.chrome_browser_ui_win_sources, ".", "//chrome")
-    sources -= [
-      "views/frame/taskbar_decorator.cc",
-    ]
+    sources -= [ "views/frame/taskbar_decorator.cc" ]
     public_deps += [
       "//ui/views",
       "//ui/views/controls/webview",
     ]
     deps += [
       "//chrome/browser/metro_utils",
       "//chrome/installer/util:strings",
       "//google_update",
       "//third_party/wtl",
       "//third_party/iaccessible2",
@@ skipping 169 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }