* Removed bitmapshaders from expectations/gm/ignored-tests.txt.

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12831071530564277917
         ]
       ], 
       "bugs": [
@@ skipping 937 matching lines @@
           "bitmap-64bitMD5", 
           13897226711214500859
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "bitmapshaders_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6776158511377132598
+          3751006211682204833
         ]
       ], 
+      "bugs": [
+        2293
+      ], 
       "reviewed-by-human": true
     }, 
     "bitmapshaders_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           14511990317404630946
         ]
       ], 
       "reviewed-by-human": true
@@ skipping 12716 matching lines @@
           14019814087375927425
         ]
       ], 
       "bugs": [
         1935
       ], 
       "reviewed-by-human": false
     }
   }
 }