Rebaseline multipicturedraw GMs

expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Debug/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 12909 matching lines @@
           "bitmap-64bitMD5", 
           3106140989036002287
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "multipicturedraw_sierpinski_simple_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5895899203449139966
+          6343009307364501166
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "multipicturedraw_sierpinski_simple_pdf-mac.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           3106140989036002287
         ]
@@ skipping 15 matching lines @@
           "bitmap-64bitMD5", 
           11584702396639674615
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "multipicturedraw_sierpinski_tiled_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15979130672036699868
+          14463107420821770322
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "multipicturedraw_sierpinski_tiled_pdf-mac.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           2278881344728331643
         ]
@@ skipping 5247 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           11835374726311942978
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }