Rebaseline 565 precision changes and matrixconvolution.

expectations/gm/Test-Win8-ShuttleA-GTX660-x86-Release/expected-results.json

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@@ skipping 11657 matching lines @@
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@@ skipping 1453 matching lines @@
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     "matrixconvolution_nvprmsaa4.png": {
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@@ skipping 6208 matching lines @@
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   }
 }