Revert "Add a RELEASE_ASSERT to guard against duplicates in DOMWrapperMap"

This reverts r153736, as there still seem to be enough world leaks in
the wild for the release assert to be the top crasher.

TBR=abarth
BUG=260011

Review URL: https://codereview.chromium.org/19258002

git-svn-id: svn://svn.chromium.org/blink/trunk@154239 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Turn on GraphicsContext annotations when tracing.

In order to provide additional Picture debug info, trace-viewer needs GraphicsContext annotations. This CL enables annotations at the GC construction site when tracing cc.debug.

R=nduca@chromium.org,pdr@chromium.org
BUG=259433

Review URL: https://chromiumcodereview.appspot.com/18641010

git-svn-id: svn://svn.chromium.org/blink/trunk@154240 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove a bunch of unused functions from MathExtras.h.

These were functions used by JavaScriptCore (and, sometimes, by nobody at
all) in WebKit, so it's safe to get rid of them now.

R=thakis@chromium.org,jochen@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19159004

git-svn-id: svn://svn.chromium.org/blink/trunk@154241 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Do not modify document in StyleResolverState

Change StyleResolverState::initForStyleResolve to take a const Document
pointer and move code that modifies the document to StyleResolver.

BUG=260293
R=eseidel@chromium.org

Review URL: https://chromiumcodereview.appspot.com/19232002

git-svn-id: svn://svn.chromium.org/blink/trunk@154242 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[Resource Timing] Resources loaded by workers shouldn't be recorded.

BUG=237801

Review URL: https://chromiumcodereview.appspot.com/18435014

git-svn-id: svn://svn.chromium.org/blink/trunk@154243 bbb929c8-8fbe-4397-9dbb-9b2b20218538