Fix the Linux/Mac build on WebKit canaries. WebKit::WebFileInfo is not used by glue_serialize_unittest.cc.
Fix the Linux/Mac build on WebKit canaries. WebKit::WebFileInfo is not
used by glue_serialize_unittest.cc.

BUG=none
TEST=test_shell_tests compiles
TBR=hclam


Review URL: http://codereview.chromium.org/3515004

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@61109 0039d316-1c4b-4281-b951-d872f2087c98

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