FYI scoped_refptr is  issue 610048 .

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ca1070937cf760f039eae9392280b9e7c1601174

commit ca1070937cf760f039eae9392280b9e7c1601174
Author: wez <wez@chromium.org>
Date: Thu May 26 20:30:52 2016

Fix pointer checks to test-as-bool rather than null compares.

Various test fixtures have acquired assertions and expectations on pointers which try to compare explicitly with NULL or nullptr, rather than testing pointers as bools. These cases will break when WeakPtr is fixed to provide explicit operator bool().

Some bool-checks of other pointer containers (e.g. foo.get() == NULL) are also cleaned up.

BUG= 605794 

Review-Url: https://codereview.chromium.org/2007373004
Cr-Commit-Position: refs/heads/master@{#396270}

[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/http/http_network_transaction_unittest.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/spdy/spdy_network_transaction_unittest.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/spdy/spdy_session_pool_unittest.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/spdy/spdy_session_unittest.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/spdy/spdy_stream_unittest.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/net/spdy/spdy_test_util_common.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/remoting/protocol/fake_datagram_socket.cc
[modify] https://crrev.com/ca1070937cf760f039eae9392280b9e7c1601174/sync/internal_api/attachments/attachment_downloader_impl_unittest.cc

Removing blocked-on  issue 607208 , based on the current analysis in comment #11 on that bug.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b9820d493c42b7e3a4aebcd7956b016232600a1d

commit b9820d493c42b7e3a4aebcd7956b016232600a1d
Author: wez <wez@chromium.org>
Date: Wed Jun 22 23:41:04 2016

Replace safe-bool idiom with explicit operator bool() in base::WeakPtr.

Also fixes various call-sites which were using WeakPtr as a bool
return-value, or comparing to NULL to test as a bool.

BUG= 605794 

Review-Url: https://codereview.chromium.org/1909263002
Cr-Commit-Position: refs/heads/master@{#401464}

[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/base/memory/weak_ptr.h
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/base/memory/weak_ptr_unittest.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/chrome/browser/ui/sync/one_click_signin_sync_starter.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/content/browser/renderer_host/media/video_capture_manager_unittest.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/content/browser/service_worker/service_worker_provider_host.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/content/renderer/media/pepper_to_video_track_adapter.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/device/bluetooth/bluetooth_adapter_factory.cc
[modify] https://crrev.com/b9820d493c42b7e3a4aebcd7956b016232600a1d/net/dns/host_resolver_impl.cc