Rebaseline pictureshader GM after http://crrev.com/852213002

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

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 12252 matching lines @@
           "bitmap-64bitMD5", 
           3911440082938535639
         ]
       ], 
       "reviewed-by-human": false
     }, 
     "pictureshader_angle.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          10696445918155364018
+          12263638854198217545
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshadertile_angle.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16229963383871377197
         ]
@@ skipping 3777 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12937422788648264516
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }