Add support for standalone ASAN build.

Adds tools/memory to standalone DEPS.

Bug: angleproject:3897
Change-Id: I744e5816156e6e1df78033201eb7fd56083c1bc6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1787997
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/DEPS b/DEPS
index 9ef0f89..160fe70 100644
--- a/DEPS
+++ b/DEPS
@@ -200,6 +200,11 @@
     'url': '{chromium_git}/chromium/src/tools/md_browser@0bfd826f8566a99923e64a782908faca72bc457c',
     'condition': 'not build_with_chromium',
   },
+
+  '{angle_root}/tools/memory': {
+    'url': '{chromium_git}/chromium/src/tools/memory@89552acb6e60f528fe3c98eac7b445d4c34183ee',
+    'condition': 'not build_with_chromium',
+  },
 }
 
 hooks = [