Move webkit_compositor_bindings_unittests from experimental step to Android waterfall.

build/android/buildbot/buildbot_functions.sh

Index: build/android/buildbot/buildbot_functions.sh
diff --git a/build/android/buildbot/buildbot_functions.sh b/build/android/buildbot/buildbot_functions.sh
index 732a8a297673beef8237ba8318683bb19c761f7a..9090b98418903900e46ecf85bcb6012d865e3b0f 100755
--- a/build/android/buildbot/buildbot_functions.sh
+++ b/build/android/buildbot/buildbot_functions.sh
@@ -210,8 +210,11 @@ function bb_run_unit_tests {
 
 # Run experimental unittest bundles.
 function bb_run_experimental_unit_tests {
-  build/android/run_tests.py --xvfb --verbose -s \
-    webkit_compositor_bindings_unittests
+# This build step was added because bash does not allow empty functions.
+# run_tests.py echoes a build step, comment/remove this build step when you
+# add tests to the experimental step.
+echo '@@@BUILD_STEP experimental_unit_tests@@@'
+
 }
 
 # Run a buildbot step and handle failure.