rebaseline after gradient fix

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 8188 matching lines @@
           "bitmap-64bitMD5", 
           7664121872967423121
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "hairlines_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5168302732173769256
+          6345713720626791403
         ]
       ], 
       "ignore-failure": true, 
       "reviewed-by-human": true
     }, 
     "hairlines_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           3825893635769089163
@@ skipping 1181 matching lines @@
           "bitmap-64bitMD5", 
           6063090843346121884
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "mixed_xfermodes_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5252811571252992921
+          10564489121920605943
         ]
       ], 
       "ignore-failure": true, 
       "reviewed-by-human": true
     }, 
     "modecolorfilters_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           17018119867927202498
@@ skipping 4399 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12937422788648264516
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }