Add AOSP tools as an Android dep.
diff --git a/DEPS b/DEPS
index 7c9e9f8..ff11188 100644
--- a/DEPS
+++ b/DEPS
@@ -8,4 +8,7 @@
 deps = {
     'src/third_party/freetype':
         Var('chromium_git_url') + 'chromium/src/third_party/freetype.git',
+
+    'src/third_party/aosp':
+      'http://src.chromium.org/svn/trunk/deps/third_party/aosp@122156',
 }