Generate the icu data binaries at compile time instead of checking in binaries

build_tools/run_without_cygwin.py

Index: build_tools/run_without_cygwin.py
diff --git a/build_tools/run_without_cygwin.py b/build_tools/run_without_cygwin.py
new file mode 100644
index 0000000000000000000000000000000000000000..d299537b3484a14a5ca0a1ef48b1fd953f12db99
--- /dev/null
+++ b/build_tools/run_without_cygwin.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# Copyright 2014 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""This program wraps an arbitrary command since gn currently can only execute
+scripts."""
+
+import os
+import subprocess
+import sys
+
+try:
+    env = os.environ
+    if "PATH" in env:
+        path = env["PATH"]
+        if "cygwin" in path:
+            # Needed to make pkgdata and similar work.
+            print("Removing cygwin from path.")
+            parts = path.split(";")
+            path = ";".join([x for x in parts if not "cygwin" in x])
+            env["PATH"] = path
+    res = subprocess.call(sys.argv[1:], env=env)
+except Exception as e:
+    res = 1
+    print("%s" % e)
+
+if res != 0:
+    print("In %s" % os.getcwd())
+    print("%s" % sys.argv)
+
+sys.exit(res)