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

content/test/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//media/media_options.gni")
@@ skipping 334 matching lines @@
       "//media/base:test_support",
       "//media:shared_memory_support",
       "//mojo/application/public/cpp:cpp_for_chromium",
       "//mojo/environment:chromium",
       "//mojo/test:test_support",
       "//net:test_support",
       "//ppapi/host",
       "//ppapi/proxy",
       "//ppapi/proxy:ipc",
       "//ppapi/shared_impl",
-      "//third_party/mojo/src/mojo/edk/system",
-      "//third_party/mojo/src/mojo/edk/test:test_support",
       "//third_party/mojo/src/mojo/public/cpp/bindings",
       "//third_party/mojo/src/mojo/public/js",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/WebKit/public:blink",
       "//third_party/leveldatabase",
       "//third_party/mesa:osmesa",
       "//third_party/zlib",
       "//ui/accessibility",
       "//ui/accessibility:ax_gen",
       "//ui/base",
       "//ui/base/ime",
       "//ui/gfx",
       "//ui/gfx/geometry",
       "//ui/gl",
       "//ui/gl:test_support",
       "//ui/resources",
       "//ui/shell_dialogs",
       "//ui/snapshot",
     ]
 
+    if (use_chrome_edk) {
+      deps += [
+        "//mojo/edk/system",
+        "//mojo/edk/test:test_support",
+      ]
+    } else {
+      deps += [
+        "//third_party/mojo/src/mojo/edk/system",
+        "//third_party/mojo/src/mojo/edk/test:test_support",
+      ]
+    }
+
     data_deps = [
       "//ppapi:ppapi_tests",
       "//third_party/mesa:osmesa",
     ]
 
     if (is_win) {
       sources += rebase_path(
               content_tests_gypi_values.content_browsertests_win_sources,
               ".",
               "//content")
@@ skipping 138 matching lines @@
     "//device/battery",
     "//device/battery:mojo_bindings",
     "//mojo/environment:chromium",
     "//net:extras",
     "//net:test_support",
     "//skia",
     "//sql",
     "//sql:test_support",
     "//testing/gmock",
     "//testing/gtest",
-    "//third_party/mojo/src/mojo/edk/test:test_support",
     "//third_party/mojo/src/mojo/public/cpp/bindings",
     "//third_party/re2",
     "//ui/accessibility",
     "//ui/base",
     "//ui/events/blink",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/gfx/ipc",
   ]
 
+  if (use_chrome_edk) {
+    deps += [ "//mojo/edk/test:test_support" ]
+  } else {
+    deps += [ "//third_party/mojo/src/mojo/edk/test:test_support" ]
+  }
+
   if (!is_ios) {
     deps += [
       "//base/third_party/dynamic_annotations",
       "//cc",
       "//cc:test_support",
       "//cc/surfaces",
       "//content:resources",
       "//content/gpu",
       "//content/public/browser",
       "//content/public/child",
@@ skipping 233 matching lines @@
       "//testing/gtest",
       "//third_party/WebKit/public:blink",
       "//ui/base",
       "//ui/gfx",
       "//ui/gfx/geometry",
       "//ui/gl",
       "//ui/gl:test_support",
     ]
   }
 }