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

expectations/gm/Test-Ubuntu12-ShuttleA-GTX660-x86_64-Release/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 17486 matching lines @@
           "bitmap-64bitMD5", 
           1843194965390816202
         ]
       ], 
       "reviewed-by-human": false
     }, 
     "pictureshader_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          17233888616117851620
+          12077015116327372369
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          4104595346370892046
+          16673641718333442824
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          3025601355708053975
+          4102668298839912837
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          499365703010302824
+          15886517519036950358
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_nvprmsaa4.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          3025601355708053975
+          4102668298839912837
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshader_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2724395556766072278
+          4045356330475027745
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "pictureshadertile_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9326495518356380684
         ]
@@ skipping 5065 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           11835374726311942978
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }