Rebaseline "lighting" GM tests

expectations/gm/Test-Ubuntu12-ShuttleA-ATI5770-x86_64-Debug/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 7329 matching lines @@
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }, 
     "lighting_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11007882816943253636
+          6087529684074667970
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2445151253658587505
+          16242435046580837768
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11156208867963674446
+          3179382429067604637
         ]
       ], 
       "ignore-failure": false
     }, 
     "lighting_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9104486099187236588
         ]
@@ skipping 3549 matching lines @@
           4745935902621983993
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }