Rebaseline imagefiltersscaled GM.

expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 9496 matching lines @@
           "bitmap-64bitMD5", 
           8717475517337029693
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "imagefiltersscaled_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          2172843238646496675
+          11946238769617607854
         ]
       ]
     }, 
     "imagefiltersscaled_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8893133107973931063
+          2721829120942518508
         ]
       ]
     }, 
     "imagefiltersscaled_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15276328572180701158
+          8126282611016392185
         ]
       ]
     }, 
     "imagefiltersscaled_pdf-mac.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8149041933439041877
+          4768898103244283309
         ]
       ]
     }, 
     "imagefiltersscaled_pdf-native.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          179738712216389099
+          9096966217280988319
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "imagemagnifier_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           13517124986811807474
         ]
@@ skipping 5298 matching lines @@
           7829854837061118142
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }