Reject frames with invalid BeginFrameAck in CompositorFrameSinkSupport

Currently we fix the frame's BeginFrameAck in CompositorFrameSinkSupport
if it's invalid and print an error message. There is no reason to do this
other than the fact that tests are clumsy and send invalid frames. This
CL fixes the tests and rejects invalid BeginFrameAcks in CFSS.

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2835393003
Cr-Commit-Position: refs/heads/master@{#467036}

• cc/BUILD.gn[diff]
• cc/surfaces/compositor_frame_sink_support.cc[diff]
• cc/surfaces/display_unittest.cc[diff]
• cc/surfaces/surface_aggregator_unittest.cc[diff]
• cc/surfaces/surface_hittest_unittest.cc[diff]
• cc/surfaces/surface_manager_ref_unittest.cc[diff]
• cc/surfaces/surface_unittest.cc[diff]
• cc/surfaces/surfaces_pixeltest.cc[diff]
• cc/test/compositor_frame_helpers.cc[Added - diff]
• cc/test/compositor_frame_helpers.h[Added - diff]
• cc/test/surface_hittest_test_helpers.cc[diff]