[Android] Set flags for uiautomator based on annotations not test name.

build/android/run_instrumentation_tests.py

Index: build/android/run_instrumentation_tests.py
diff --git a/build/android/run_instrumentation_tests.py b/build/android/run_instrumentation_tests.py
index 4b288f12186ec6c1b84927d148ccca9269b3b3b2..089c04c3c490ebc9e78d9a1f85e3c8050bb7c086 100755
--- a/build/android/run_instrumentation_tests.py
+++ b/build/android/run_instrumentation_tests.py
@@ -7,6 +7,7 @@
 """Runs both the Python and Java instrumentation tests."""
 
 import optparse
+import os
 import sys
 
 from pylib import buildbot_report
@@ -49,7 +50,7 @@ def DispatchInstrumentationTests(options):
   report_results.LogFull(
       results=all_results,
       test_type='Instrumentation',
-      test_package=options.test_apk,
+      test_package=os.path.basename(options.test_apk),
       annotation=options.annotation,
       build_type=options.build_type,
       flakiness_server=options.flakiness_dashboard_server)