[webcrypto] Make the import algorithm a required parameter.

This applies to both importKey() and unwrapKey().

This matches the intended change in the spec, of dropping self-identifying JWK keys:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=25036

BUG=245025

Review URL: https://codereview.chromium.org/198513002

git-svn-id: svn://svn.chromium.org/blink/trunk@169383 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Use new is*Element() helper functions more in core/ code

Use new is*Element() helpers more in core/ code. This makes the code clearer
and simpler.

R=adamk, eseidel
BUG=346095

Review URL: https://codereview.chromium.org/201403002

git-svn-id: svn://svn.chromium.org/blink/trunk@169384 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Use new is*Element() helper functions more in rendering code

Use new is*Element() helpers more in rendering code. This makes the code clearer
and simpler.

R=esprehn, adamk
BUG=346095

Review URL: https://codereview.chromium.org/197283025

git-svn-id: svn://svn.chromium.org/blink/trunk@169385 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Allow disabling timeline live update as an experiment.

BUG=353217
R=loislo@chromium.org

Review URL: https://codereview.chromium.org/197233006

git-svn-id: svn://svn.chromium.org/blink/trunk@169386 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Refactor FastTextAutosizer to remove the TextAutosizer dependencies

This patch copies TextAutosizer's functions into FastTextAutosizer.cpp
so that we can refactor this code for understandability. This is the
first patch of a few and just moves the code. A followup will actually
refactor the functions.

BUG=302005

Review URL: https://codereview.chromium.org/200603002

git-svn-id: svn://svn.chromium.org/blink/trunk@169387 bbb929c8-8fbe-4397-9dbb-9b2b20218538