Move navigatorcontentutils directory to top of LayoutTests

Modules tests have been placed in top of LayoutTests. So, this cl moves navigatorcontentutils
to top of LayoutTests.

BUG=none

Review URL: https://codereview.chromium.org/335783003

git-svn-id: svn://svn.chromium.org/blink/trunk@176105 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Fix memory leak in GraphicsContextState.

In GraphicsContextState::copy we use placement-new to overwrite the current
object. We need to first call the object's destructor though to not leak any
memory.

BUG=383548

Review URL: https://codereview.chromium.org/335613002

git-svn-id: svn://svn.chromium.org/blink/trunk@176106 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[SVG] Cleanup: remove externalResourcesRequired attribute from parser.

HTML spec update:
http://html5.org/tools/web-apps-tracker?from=8674&to=8675

BUG=332066

Review URL: https://codereview.chromium.org/329103003

git-svn-id: svn://svn.chromium.org/blink/trunk@176107 bbb929c8-8fbe-4397-9dbb-9b2b20218538