Omit Chromecast test that seems to OOM.

No-Try: true
Change-Id: Id29313364b0e99363a5fea7b99a45e904e2c438a
Reviewed-on: https://skia-review.googlesource.com/110820
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Ben Wagner <benjaminwagner@google.com>

infra/bots/recipes/test.expected/Test-Chromecast-GCC-Chorizo-GPU-Cortex_A7-arm-Release-All.json

@@ -598,6 +598,7 @@
       "~lighting",
       "~imageblur2",
       "~animated-image-blurs",
+      "~textblobmixedsizes_df",
       "~textblobrandomfont",
       "~GM_animated-image-blurs",
       "~verylarge",

infra/bots/recipes/test.py

@@ -528,6 +528,7 @@ def dm_flags(api, bot):
       match.append('~lighting')
       match.append('~imageblur2')
       match.append('~animated-image-blurs')
+      match.append('~textblobmixedsizes_df')
       match.append('~textblobrandomfont')
     # Blacklisted to avoid OOM (we see DM just end with "broken pipe")
     match.append('~GM_animated-image-blurs')