[CSS Shapes] inset does not properly clamp large corner radii

Make sure that radii that are larger than 50% of the associated shape
dimension (height or width) are properly reduced the same way as
border-radius radii are.

Ported over from http://trac.webkit.org/changeset/165261.

BUG=351775

Review URL: https://codereview.chromium.org/195793009

git-svn-id: svn://svn.chromium.org/blink/trunk@169086 bbb929c8-8fbe-4397-9dbb-9b2b20218538
TimelinePanel: fix dividers align in FlameChart

BUG=
R=pfeldman@chromium.org

Review URL: https://codereview.chromium.org/197293004

git-svn-id: svn://svn.chromium.org/blink/trunk@169087 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: fix unjustified modification of sidebar tree when layer tree is not updated

We used to thrash layer tree in the sidebar when receiving unchanged
layer tree with layerTreeDidChange event due to a bug in how we checked
if root has changed parent.

BUG=
R=vsevik@chromium.org

Review URL: https://codereview.chromium.org/169753002

git-svn-id: svn://svn.chromium.org/blink/trunk@169088 bbb929c8-8fbe-4397-9dbb-9b2b20218538
HAR: export only finished requests.

BUG=350113
NOTRY=true

Review URL: https://codereview.chromium.org/197193002

git-svn-id: svn://svn.chromium.org/blink/trunk@169089 bbb929c8-8fbe-4397-9dbb-9b2b20218538