Remove unnecessary synchronisation in FileResourceManager

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Every getResource call is synchronized, this has some performance penalty, I 
think that we should use the synchronisation only when we change or regenerate 
the different versions.

Original issue reported on code.google.com by ichae...@gmail.com on 9 Aug 2010 at 8:20

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Original comment by joshharr...@google.com on 16 Dec 2010 at 5:43

• Added labels: Performance, Maintainability

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Each comment triggers notification emails. So, please do not post "+1 Me too!".
Instead, click the star icon.

Original comment by jayagant...@iijt.net on 3 Mar 2011 at 9:26