Add GN build for some chrome common, chrome net, and resources targets.

chrome/browser/ui/webui/omnibox/BUILD.gn

Index: chrome/browser/ui/webui/omnibox/BUILD.gn
diff --git a/mojo/public/interfaces/interface_provider/BUILD.gn b/chrome/browser/ui/webui/omnibox/BUILD.gn
similarity index 63%
copy from mojo/public/interfaces/interface_provider/BUILD.gn
copy to chrome/browser/ui/webui/omnibox/BUILD.gn
index 55d5b0a37da471bc2666f1918b7b9cc2986c84f8..53f4c374935e5003425d8523f1de813b41617766 100644
--- a/mojo/public/interfaces/interface_provider/BUILD.gn
+++ b/chrome/browser/ui/webui/omnibox/BUILD.gn
@@ -1,11 +1,12 @@
-# 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("//mojo/public/tools/bindings/mojom.gni")
-
-mojom("interface_provider") {
-  sources = [
-    "interface_provider.mojom",
-  ]
-}
+# 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("//mojo/public/tools/bindings/mojom.gni")
+
+# GYP version: chrome/chrome_web_ui_mojo_bindings.gyp:webui_mojo_bindings
+mojom("mojo_bindings") {
+  sources = [
+    "omnibox.mojom",
+  ]
+}