Rebaselines for tests affected by image filter PDF change.

expectations/gm/Test-Android-Nexus9-TegraK1-Arm64-Debug/expected-results.json

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           16998423976396106083
         ]
       ], 
       "reviewed-by-human": true
@@ skipping 12020 matching lines @@
           "bitmap-64bitMD5", 
           6913857649673524662
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "testimagefilters_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5115665870392462534
+          13904236975763115664
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "testimagefilters_msaa16.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           5714371734871865975
         ]
@@ skipping 1291 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           10030599291822810250
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }