Apply style guideline for variable names for browser action container.
Apply style guideline for variable names for browser action container.

Change arrowLocation to arrow_location, to follow Chromium code standards.

BUG=494008
TEST=None

Review URL: http://codereview.chromium.org/522027

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@35383 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser