DevTools: fix styles for xhr-breakpoint input field

BUG=357520

Review URL: https://codereview.chromium.org/219333007

git-svn-id: svn://svn.chromium.org/blink/trunk@170558 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Make sure UISC content is up-to-date when running performSearchInContent()

R=vsevik@chromium.org, vsevik
BUG=357614

Review URL: https://codereview.chromium.org/216183003

git-svn-id: svn://svn.chromium.org/blink/trunk@170559 bbb929c8-8fbe-4397-9dbb-9b2b20218538