Take care of a bunch of pending GPU rebaselines and remove tests from ignored-tests.txt

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

Index: expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json
diff --git a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json
index c194c7154125812ff6157015b03277fc3d650531..acfc69011936fda234eaca868b6e507cb0faaae6 100644
--- a/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json
+++ b/expectations/gm/Test-Win8-ShuttleA-HD7770-x86_64-Debug/expected-results.json
@@ -5158,13 +5158,10 @@
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           "bitmap-64bitMD5", 
-          1760801832456503530
+          10705771699045417639
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-      "bugs": [
-        1935
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-      "reviewed-by-human": false
+      "reviewed-by-human": true
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     "downsamplebitmap_checkerboard_high_512_256_pdf-poppler.png": {
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@@ -5350,13 +5347,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9934940677187765957
+          4080615844295629366
         ]
       ], 
-      "bugs": [
-        1935
-      ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
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     "downsamplebitmap_image_high_mandrill_512.png_pdf-poppler.png": {
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@@ -5542,13 +5536,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          3170242940956178949
+          7227409546001357465
         ]
       ], 
-      "bugs": [
-        1935
-      ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
     }, 
     "downsamplebitmap_text_high_72.00pt_pdf-poppler.png": {
       "allowed-digests": [
@@ -6262,13 +6253,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          15980531375542439728
+          1971355163960977590
         ]
       ], 
-      "bugs": [
-        1935
-      ], 
-      "reviewed-by-human": false
+      "reviewed-by-human": true
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     "filterbitmap_checkerboard_192_192_pdf-poppler.png": {
       "allowed-digests": [
@@ -13345,10 +13333,10 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
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+          11638138423861161839
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-      "reviewed-by-human": false
+      "reviewed-by-human": true
     }, 
     "vertices_80_pdf-poppler.png": {
       "allowed-digests": [