pdf-mac clear to black rebaseline

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

Index: expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json
diff --git a/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json b/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json
index 903cb2aaeca55811c4a39bfab40fc761307aeac5..c24e27945bb5d7e4d39ecbb9ddd3ad1bdaefe7ac 100644
--- a/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json
+++ b/expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86_64-Release/expected-results.json
@@ -4821,10 +4821,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          5557054264948942887
+          15967084461769578851
         ]
       ], 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "colorcube_pdf-native.png": {
       "allowed-digests": [
@@ -6733,11 +6733,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8589395530227712121
+          11880185855418792365
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "displacement_pdf-native.png": {
       "allowed-digests": [
@@ -14191,11 +14191,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          8983923604084307345
+          17300030095663402731
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "offsetimagefilter_pdf-native.png": {
       "allowed-digests": [
@@ -14911,12 +14911,9 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9642424294640112060
+          17120868825023817733
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
       "reviewed-by-human": false
     }, 
     "perlinnoise_pdf-native.png": {
@@ -18437,11 +18434,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9731024951998568241
+          14795861386913800488
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "tileimagefilter_pdf-native.png": {
       "allowed-digests": [
@@ -19504,11 +19501,11 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6406067596114174002
+          5717107989320932840
         ]
       ], 
       "ignore-failure": false, 
-      "reviewed-by-human": true
+      "reviewed-by-human": false
     }, 
     "xfermodeimagefilter_pdf-native.png": {
       "allowed-digests": [