Updating ChromeVox, opensourcing on Mar 7.

Change-Id: Ide04a3e45f707aa727b09bf5fd7081dd53fdad52

BUG=chromium-os:12775
TEST=Test manually by enabing accessibility by pressing Ctrl+Alt+Z at the login screen

Review URL: http://codereview.chromium.org/6625028
diff --git a/accessibility/extensions/access_chromevox.zip b/accessibility/extensions/access_chromevox.zip
index b034f9d..d77a952 100644
--- a/accessibility/extensions/access_chromevox.zip
+++ b/accessibility/extensions/access_chromevox.zip
Binary files differ