crosswalk-project/crosswalk — pull request #969 by wang16 (2013-10-24 02:28:32+00:00)
Title: [Extension] Fix build failure on Windows

Use '\' for the product_dir on Windows in external_extension_sample.gyp.
Otherwise, the build system can't handle the path well in some cases,
e.g. creating or deleting them.
It fails the windows build when it starts from zero.