more PDF filterbitmap ignores

expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json

Index: expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json
diff --git a/expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json b/expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json
index e831630aba36fb132aa656c2dbfb4e36de1262d5..f9597f5bf643acac9200fb0f43f85386284a39b9 100644
--- a/expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json
+++ b/expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release/expected-results.json
@@ -5811,12 +5811,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          6456457240544710745
+          13241224915126890867
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "filterbitmap_text_3.00pt_565.png": {
@@ -5850,12 +5848,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11473848499279419638
+          9091832435265748234
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "filterbitmap_text_7.00pt_565.png": {
@@ -5889,12 +5885,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          446266135049084915
+          15239359644602915396
         ]
       ], 
-      "bugs": [
-        1578
-      ], 
+      "ignore-failure": true, 
       "reviewed-by-human": false
     }, 
     "fontcache_gpu.png": {