ReplaceSelectionCommand should attach lazily.

BUG=276687

Review URL: https://chromiumcodereview.appspot.com/23189020

git-svn-id: svn://svn.chromium.org/blink/trunk@156663 bbb929c8-8fbe-4397-9dbb-9b2b20218538
If an element has unicode-bidi: plaintext and no strong directional characters. By default it should be LTR.

BUG=277687

Review URL: https://chromiumcodereview.appspot.com/23112019

git-svn-id: svn://svn.chromium.org/blink/trunk@156664 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Adds console.* APIs for workers.

BUG=63383

Review URL: https://chromiumcodereview.appspot.com/23145003

git-svn-id: svn://svn.chromium.org/blink/trunk@156665 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Expose isClickable attribute, and make clickable anchors have a link role.

This matches what Firefox does.

BUG=120946

Review URL: https://chromiumcodereview.appspot.com/23153004

git-svn-id: svn://svn.chromium.org/blink/trunk@156666 bbb929c8-8fbe-4397-9dbb-9b2b20218538
MediaQuery::expressions() should return a reference

Similar change as webkit.org/b/120215

m_expressions is never null so we can just return a reference.

Make ExpressionVector typedef be declared outside the class and
use it in more places.

Review URL: https://chromiumcodereview.appspot.com/23257008

git-svn-id: svn://svn.chromium.org/blink/trunk@156667 bbb929c8-8fbe-4397-9dbb-9b2b20218538