Fix a bug where an extension's icon wasn't being properly reloaded if it
changes

A query string, which is incremented whenever the extension
Reload button is clicked, is appended to the end of the
extension icon url in order to prevent caching.

Patch from Evan Peterson <evan.peterson.ep@gmail.com>
BUG=159302

Review URL: https://chromiumcodereview.appspot.com/12225147

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182625 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed