Manifest for Gradle Plugin Release 3.0.0

Change-Id: Ib845e99284260d2457236dba920eeafeb3147982
diff --git a/default.xml b/default.xml
index bfb98ed..9358c38 100644
--- a/default.xml
+++ b/default.xml
@@ -4,7 +4,7 @@
   <remote  name="aosp"
            fetch=".."
            review="https://android-review.googlesource.com/" />
-  <default revision="refs/tags/studio-3.0"
+  <default revision="refs/tags/gradle_3.0.0"
            remote="aosp"
            sync-j="4" />