Allow URLRequests from one context to have different NetworkDelegates.

This is a prerequisite to allowing a URLRequestJob to transparently wrap
a URLRequest, so AppCache can override the response for failing and
redirected requests without the NetworkDelegate or URLRequest::Delegate
being aware of the underlying request.

Also consolidate the URLRequest constructors, and make most code create
URLRequests through the URLRequestContext's CreateRequest function,
rather than through its constructor.

TBR=battre@chromium.org
BUG=161547

Review URL: https://codereview.chromium.org/407093011

Cr-Commit-Position: refs/heads/master@{#291090}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@291090 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: f7022f35ef5ae2ce0aa7fbb5977b140ca1a2ab1c
1 file changed
tree: 2e176fb918788b3be32ea9f588d32a363e587483
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/