Oilpan: fix build after r188851.

Move FetchManager::Loader to the heap as ContextLifecycleObserver are
now GC mixins.

R=haraken
BUG=451288
NOTRY=true

Review URL: https://codereview.chromium.org/869903002

git-svn-id: svn://svn.chromium.org/blink/trunk@188864 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed
tree: 07e545052573b15562769ab92995d6ad12b4e9db
  1. third_party/