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

expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 11302 matching lines @@
           "bitmap-64bitMD5", 
           3911440082938535639
         ]
       ], 
       "reviewed-by-human": false
     }, 
     "pictureshader_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          17167504351665242025
+          13086683117104852386
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6493310883399133453
+          17461868971238166317
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2710453508682815644
+          17206852171622152266
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           71577620991525908
         ]
@@ skipping 3244 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           18282805787534784798
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }