Improve drawing of omnibox in HiDPI mode
Improve drawing of omnibox in HiDPI mode

In HiDPI mode the omnibox looks a little blurry. The current drawing code assumes that a line width of 1.0 will draw a 1 pixel wide line.

This change looks up the line_width at run time.

Screenshot of old omnibox:
https://docs.google.com/leaf?id=0B0Odde3V7EhWYzEyYmM2ZjItMzczNC00MjMxLWE5NGItZWY4N2I2MDdiMzg5&hl=en
Screenshot of new omnibox:
https://docs.google.com/leaf?id=0B0Odde3V7EhWMDVhY2U5N2UtMWVhYi00YThjLThlYjctNzE2ODIxZjg3OTc0&hl=en

BUG=None
TEST=Verified that the ominbox looks the same at 72DPI. Ran at 144 DPI and verified that the ominbox no longer looks blurry.

Review URL: http://codereview.chromium.org/6834012

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@81884 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