Revert of Rebaseline imagemagnifier and dropshadowimagefilter tests.

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

 {
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           9785004568147979273
         ]
       ], 
       "bugs": [
@@ skipping 5179 matching lines @@
       ], 
       "bugs": [
         2146
       ], 
       "reviewed-by-human": false
     }, 
     "dropshadowimagefilter_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          14337791985002589107
+          12156758254935928614
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dropshadowimagefilter_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
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+          3409427114865193370
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dropshadowimagefilter_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          9987975167883679483
+          14476602016812098953
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "dropshadowimagefilter_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           15943794269652976463
         ]
@@ skipping 3111 matching lines @@
         [
           "bitmap-64bitMD5", 
           3705758857776045239
         ]
       ]
     }, 
     "imagemagnifier_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          4020392797374134483
+          5563667344996973164
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "imagemagnifier_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          11428003204008945500
+          1845870277236459979
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "imagemagnifier_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          16393086093738304757
+          14011644356630400111
         ]
       ], 
       "reviewed-by-human": true
     }, 
     "imagemagnifier_pdf-poppler.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           7601404827323785637
         ]
@@ skipping 5011 matching lines @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           12937422788648264516
         ]
       ], 
       "reviewed-by-human": true
     }
   }
 }