DevTools: Remove unneeded willReceiveResourceResponse instrumentation.

R=pfeldman, caseq

Review URL: https://codereview.chromium.org/106723003

git-svn-id: svn://svn.chromium.org/blink/trunk@163276 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove indirect pure virtual call from destructor of DeviceSensorEventController.

Pure virtual methods should not be called from a destructor.
Such calls can result in crashes.

BUG=316317

Review URL: https://codereview.chromium.org/99483010

git-svn-id: svn://svn.chromium.org/blink/trunk@163277 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Fixed scrolling using the mouse wheel inside regions.

When searching for the scroll ancestor and encountering a named flow thread,
the search will continue with the DOM ancestor of the top-most element
in the named flow thread.

BUG=315479

Review URL: https://codereview.chromium.org/84923005

git-svn-id: svn://svn.chromium.org/blink/trunk@163278 bbb929c8-8fbe-4397-9dbb-9b2b20218538