Auto-rebaseline for r171367

http://src.chromium.org/viewvc/blink?view=revision&revision=171367

BUG=362078
TBR=enne@chromium.org

Review URL: https://codereview.chromium.org/236243002

git-svn-id: svn://svn.chromium.org/blink/trunk@171388 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Early return in RenderLayerCompositor::updateForceCompositingMode.

We're hitting an assert in requiresCompositingForScrollableFrame,
because it depends on layout information. With
http://src.chromium.org/viewvc/blink?revision=171366&view=revision,
we now try to update this state when setting forceCompositingMode,
at which point, layout is not necessarily up to date.

We can just early return here because this method will be called
again after we've done the layout. This does potentially expose
us to bugs from chicken-egg issues that depend on the
m_forceCompositingMode bit for subframes.

Review URL: https://codereview.chromium.org/236193002

git-svn-id: svn://svn.chromium.org/blink/trunk@171389 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Refactoring: Get rid of HTMLImportRoot.

This CL removes HTMLImportRoot abstract class and merge it
into HTMLImportsController.

TEST=none
BUG=none
R=dglazkov@chromium.org, dominicc@chromium.org

Review URL: https://codereview.chromium.org/234063004

git-svn-id: svn://svn.chromium.org/blink/trunk@171390 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[webcrypto] Improve the concurrency layout test.

Previously it was running a number of concurrent operations, however none of those operations were using the same key.

Now each of the encrypt/decrypt/exportKey, sign/verify/exportKey sequences for a particular key are also run in parallel.

BUG=245025
R=abarth@chromium.org

Review URL: https://codereview.chromium.org/224823003

git-svn-id: svn://svn.chromium.org/blink/trunk@171391 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[CSS Shapes] Add regions like performance test

Add a performance test that emulates regions but does not actually use them.

This is a merge of http://trac.webkit.org/changeset/167022 by Zoltan Horvath <zoltan@webkit.org>.

NOTRY=true
BUG=349093

Review URL: https://codereview.chromium.org/231943002

git-svn-id: svn://svn.chromium.org/blink/trunk@171392 bbb929c8-8fbe-4397-9dbb-9b2b20218538