Don't treat retyping the current search query as a reload.
Don't treat retyping the current search query as a reload.

BUG=54274
TEST=none
Review URL: http://codereview.chromium.org/4605002

git-svn-id: http://src.chromium.org/svn/trunk/src@65388 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 0daf052b32d3da8abb0e2b1deca74c43b6fc8bda
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser