Fix app icon flicker in loading animation
Fix app icon flicker in loading animation

The flicker is caused by setting window title icon while a loading
animation is in progress. Fix the problem by skipping window icon update
when loading animation is running.

BUG=15782
TEST=Verify no flicker while web app loads per Ben's comments.

Review URL: http://codereview.chromium.org/436028

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@32982 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