rebaseline: perspective gradients in pdf

expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86-Debug/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 9208 matching lines @@
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }, 
     "gradients_view_perspective_pdf-mac.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2023396728983700767
+          8598787236487297865
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       ], 
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         1578
       ], 
       "reviewed-by-human": false
     }, 
     "gradients_view_perspective_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9749250844822835346
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       ], 
       "bugs": [
         1578
       ], 
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     }, 
     "gradtext_565.png": {
       "allowed-digests": [
         [
@@ skipping 5870 matching lines @@
           10424380103329133154
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }