Show line and column in allocation stack traces

Added link from allocation stack traces to the corresponding source code locations.

BUG=277984
R=loislo@chromium.org

Review URL: https://codereview.chromium.org/25875002

git-svn-id: svn://svn.chromium.org/blink/trunk@158810 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Problem: JS 'focus' handler fired by drag-n-drop can't restore input value.

Solution: enqueue event dispatching, so handlers execute when state is stable.

BUG=263743

Review URL: https://codereview.chromium.org/21030005

git-svn-id: svn://svn.chromium.org/blink/trunk@158811 bbb929c8-8fbe-4397-9dbb-9b2b20218538
CSS Animations: Add a test of the timing model

This exposes numerous problems in the existing implementation
that should be resolved by moving to the Web Animations engine.

Some issues dealing with 0 iteration / 0 duration animations in
Web Animations are also exposed.

Review URL: https://codereview.chromium.org/25387002

git-svn-id: svn://svn.chromium.org/blink/trunk@158812 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[DevTools] Network: remove confusing "Pending" label for request type.

When mime type is not known (for example, when request was cancelled)
we show "Pending" label. That confuses users.

BUG=301559

Review URL: https://codereview.chromium.org/25631004

git-svn-id: svn://svn.chromium.org/blink/trunk@158813 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Corrected UA style for a:focus in simpleUserAgentStyleSheet.

simpleUserAgentStyleSheet did not have an outline on a:focus like html.css.
The result was flakiness for the following test depending on whether the full
UA styles had been triggered by a previous test or not:

LayoutTests/fast/events/reveal-link-when-focused.html

R=ojan@chromium.org
BUG=303323

Review URL: https://codereview.chromium.org/25722007

git-svn-id: svn://svn.chromium.org/blink/trunk@158814 bbb929c8-8fbe-4397-9dbb-9b2b20218538