Fixes a typo in renderTextDecorationFlagsToCSSValue

Return value should be PassRefPtr instead of RefPtr.

BUG=248840

Review URL: https://chromiumcodereview.appspot.com/17601007

git-svn-id: svn://svn.chromium.org/blink/trunk@152994 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Refactoring: Fold Document::focusedNodeRemoved into Document::removeFocusedNodeOfSubtree.

There are no callsites of focusedNodeRemoved other than
removeFocusedNodeOfSubtree, and focusedNodeRemoved is very small.

BUG=none

Review URL: https://chromiumcodereview.appspot.com/17617007

git-svn-id: svn://svn.chromium.org/blink/trunk@152995 bbb929c8-8fbe-4397-9dbb-9b2b20218538