dougarnett@ can you take a look?

Seeing failures on this test bot for these tests.

RequestCoordinatorTest.PauseAndResumeObserver ( Code Search )
RequestCoordinatorTest.SavePageDoesStartProcessingWhenPoorlyConnected ( Code Search )

Maybe this CL has an issue on these tests on this bot?  https://codereview.chromium.org/2493683002

https://uberchromegw.corp.google.com/i/chromium.android/builders/Lollipop%20Low-end%20Tester/builds/4307

C  270.229s Main  [FAIL] RequestCoordinatorTest.PauseAndResumeObserver:
C  270.229s Main  [ RUN      ] RequestCoordinatorTest.PauseAndResumeObserver
C  270.229s Main  ../../components/offline_pages/background/request_coordinator_unittest.cc:1305: Failure
C  270.229s Main  Value of: observer().state()
C  270.229s Main    Actual: 4-byte object <00-00 00-00>
C  270.229s Main  Expected: SavePageRequest::RequestState::OFFLINING
C  270.229s Main  Which is: 4-byte object <02-00 00-00>
C  270.229s Main  [  FAILED  ] RequestCoordinatorTest.PauseAndResumeObserver (4 ms)
C  270.229s Main  [FAIL] RequestCoordinatorTest.SavePageDoesStartProcessingWhenPoorlyConnected:
C  270.229s Main  [ RUN      ] RequestCoordinatorTest.SavePageDoesStartProcessingWhenPoorlyConnected
C  270.229s Main  ../../components/offline_pages/background/request_coordinator_unittest.cc:1413: Failure
C  270.230s Main  Value of: is_busy()
C  270.230s Main    Actual: false
C  270.230s Main  Expected: true
C  270.230s Main  [  FAILED  ] RequestCoordinatorTest.SavePageDoesStartProcessingWhenPoorlyConnected (1 ms)