Chdir to the .gyp directory when executing actions and rules. Review URL: http://codereview.chromium.org/43106
Chdir to the .gyp directory when executing actions and rules.
Review URL: http://codereview.chromium.org/43106

git-svn-id: e7e1075985beda50ea81ac4472467b4f6e91fc78@361 78cadc50-ecff-11dd-a971-7dbc132099af

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