More circle rebaselines on gpu

expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Debug/expected-results.json

 {
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@@ skipping 8468 matching lines @@
           "bitmap-64bitMD5", 
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         ]
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           "bitmap-64bitMD5", 
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@@ skipping 3616 matching lines @@
           "bitmap-64bitMD5", 
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+          2985002905646249658
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     }, 
     "shadows_pdf-poppler.png": {
       "allowed-digests": [
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       "bugs": [
         1578
@@ skipping 2080 matching lines @@
       "allowed-digests": [
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 }