Don't allocate Strings in FontDescription().
Creation of the 'locale' String in the FontDescription constructor accounts
for 14% of the time spent in StyleResolver::styleForElement in the test-
case html5-full-render.html.
Changes in this patch:
* Let locale default-initialize, and instead produce "en" on demand.
* Use AtomicString instead of String. The locale is already stored on
LayoutStyle as an AtomicString, so we might as well use that.
R=eae@chromium.org
BUG=438069
Review URL: https://codereview.chromium.org/924903002
git-svn-id: svn://svn.chromium.org/blink/trunk@190246 bbb929c8-8fbe-4397-9dbb-9b2b20218538
4 files changed
