add some debugging for bug skia:2313

platform_tools/android/bin/android_run_skia

Index: platform_tools/android/bin/android_run_skia
diff --git a/platform_tools/android/bin/android_run_skia b/platform_tools/android/bin/android_run_skia
index 11c36756f54adf1e02ec1e656ed72fb96b0d4947..3c748725718bbcf61d3697e5da9c6ec08d018328 100755
--- a/platform_tools/android/bin/android_run_skia
+++ b/platform_tools/android/bin/android_run_skia
@@ -41,7 +41,8 @@ if [ -z "$($ADB $DEVICE_SERIAL shell 'if [ -f $STATUS_FILENAME ]; then echo exis
 fi
 EXIT_CODE=`$ADB ${DEVICE_SERIAL} shell cat ${STATUS_FILENAME}`
 $ADB ${DEVICE_SERIAL} shell rm ${STATUS_FILENAME}
+echo "EXIT_CODE is [${EXIT_CODE}]"
 if [ $'0\r' != ${EXIT_CODE} ]; then
   exit 1
 fi
-exit 0
+exit 0