Skip imagefiltersclipped GM on Galaxy S4

BUG=skia:4079

Review URL: https://codereview.chromium.org/1250473005

tools/dm_flags.json

@@ -423,7 +423,8 @@
     "Hopstarter-Mac-Folders-Apple.ico", 
     "--match", 
     "~tabl_mozilla_0", 
-    "~desk_yahoonews_0"
+    "~desk_yahoonews_0", 
+    "~imagefiltersclipped"
   ], 
   "Test-Android-GCC-Nexus7-GPU-Tegra3-Arm7-Release": [
     "--config", 

tools/dm_flags.py

@@ -169,6 +169,9 @@ def get_args(bot):
   if 'iOS' in bot:
     match.append('~WritePixels')
 
+  if 'GalaxyS4' in bot:  # skia:4079
+    match.append('~imagefiltersclipped')
+
   if match:
     args.append('--match')
     args.extend(match)