Attempt to disable tab_capture_end2end_tests on the trybots.

tools/mb/mb.py

Index: tools/mb/mb.py
diff --git a/tools/mb/mb.py b/tools/mb/mb.py
index 1aea7a38416b442db9753cb495d00a2559470349..39e78fa007fa3cdbf840d83e547df3e7d453791b 100755
--- a/tools/mb/mb.py
+++ b/tools/mb/mb.py
@@ -1286,16 +1286,19 @@ class MetaBuildWrapper(object):
       return 0
 
     gn_inp = {}
-    gn_inp['files'] = ['//' + f for f in inp['files'] if not f.startswith('//')]
+    gn_inp['files'] = sorted(['//' + f for f in inp['files']
+                              if not f.startswith('//')])
 
     isolate_map = self.ReadIsolateMap()
     err, gn_inp['additional_compile_targets'] = self.MapTargetsToLabels(
         isolate_map, inp['additional_compile_targets'])
+    gn_inp['additional_compile_targets'].sort()
     if err:
       raise MBErr(err)
 
     err, gn_inp['test_targets'] = self.MapTargetsToLabels(
         isolate_map, inp['test_targets'])
+    gn_inp['test_targets'].sort()
     if err:
       raise MBErr(err)
     labels_to_targets = {}