Fix OpaqueBrowserFrameView title painting.

Add/use |window_title_| Label instead of Canvas::DrawStringInt.
Nix PaintTitleBar; inline its comments.
Simplify LayoutTitleBar (use Label's vertical centering, etc.)

BUG=140670
TEST=App shortcut window titlebars always update appropriately; no window title/frame regressions.
R=ben@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10990017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@159087 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed