Rebase shadertext2,3 and stroketext on gpu configs

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 11231 matching lines @@
           "bitmap-64bitMD5", 
           9769536192216811097
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          10337002286006891882
+          9389131796411753513
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "shadertext3_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           4595108289072284765
         ]
@@ skipping 946 matching lines @@
           "bitmap-64bitMD5", 
           7491421414066943529
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5234974880214733565
+          3864534771342550775
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "stroketext_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16522941176943328778
         ]
@@ skipping 1096 matching lines @@
           15843716056234692659
         ]
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }
   }
 }