Fix the Android.mk gyp backend.

build/java_apk.gypi

 # Copyright (c) 2012 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.
 
 # This file is meant to be included into a target to provide a rule
 # to build Android APKs in a consistent manner.
 #
 # To use this, create a gyp target with the following form:
 # {
 #   'target_name': 'my_package_apk',
@@ skipping 317 matching lines @@
       ],
       'outputs': [
         '<(dex_path)',
       ],
       'action': [
         'python', '<(DEPTH)/build/android/dex.py',
         '--dex-path=<(dex_path)',
         '--android-sdk-root=<(android_sdk_root)',
 
         # TODO(newt): remove this once http://crbug.com/177552 is fixed in ninja.
-        '--ignore=>!(echo >(_inputs) | md5sum)',
+        '--ignore=>!(echo \'>(_inputs)\' | md5sum)',
 
         '>@(dex_inputs)',
         '>@(dex_generated_inputs)',
       ]
     },
     {
       'action_name': 'ant_package_<(_target_name)',
       'message': 'Packaging <(_target_name).',
       'inputs': [
         '<(DEPTH)/build/android/ant/apk-package.xml',
@@ skipping 39 matching lines @@
 
         # Add list of inputs to the command line, so if inputs change
         # (e.g. if a Java file is removed), the command will be re-run.
         # TODO(newt): remove this once crbug.com/177552 is fixed in ninja.
         '-DTHIS_IS_IGNORED=>!(echo \'>(_inputs)\' | md5sum)',
 
       ]
     },
   ],
 }