Test SkRemote on GCE bots.

This will get us gathering GM images.
I will set up ignores on gold.skia.org so no one's bothered.

BUG=skia:

Review URL: https://codereview.chromium.org/1414563002
diff --git a/tools/dm_flags.json b/tools/dm_flags.json
index 11baa6d..59204b3 100644
--- a/tools/dm_flags.json
+++ b/tools/dm_flags.json
@@ -1249,6 +1249,8 @@
     "upright-matrix-8888", 
     "upright-matrix-gpu", 
     "sp-8888", 
+    "remote-8888", 
+    "remote_cache-8888", 
     "msaa16", 
     "pdf", 
     "pdf_poppler", 
@@ -1468,6 +1470,8 @@
     "upright-matrix-8888", 
     "upright-matrix-gpu", 
     "sp-8888", 
+    "remote-8888", 
+    "remote_cache-8888", 
     "msaa16", 
     "pdf", 
     "pdf_poppler", 
diff --git a/tools/dm_flags.py b/tools/dm_flags.py
index e8f3918..1e8312d 100755
--- a/tools/dm_flags.py
+++ b/tools/dm_flags.py
@@ -37,6 +37,7 @@
 
   if '-GCE-' in bot:
     configs.append('sp-8888')
+    configs.extend(['remote-8888', 'remote_cache-8888'])
 
   if 'TegraK1' in bot or 'GTX550Ti' in bot or 'GTX660' in bot or 'GT610' in bot:
     if 'Android' in bot: