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The root cause here is that it was assumed that creation of a
CompositingIOSurfaceMac and CompositingIOSurfaceContext
cannot not fail when, in fact, it can. This resulted in a NULL
reference later on.

Fix part of this by making CompositingIOSurfaceLayer's init function
fail if the CompositingIOSurfaceContext fails.

Fix the remaining part of this by removing the NULL references from
BrowserCompositorViewMacInternal::GotAcceleratedIOSurfaceFrame,
and make the function call AcceleratedLayerHitError if any errors are
encountered, which will cause the layer to re-attempt the frame with
a new context.

Also, split AcceleratedLayerDidDrawFrame into two functions,
AcceleratedLayerDidDrawFrame and AcceleratedLayerHitError, rather
than parameterizing success using a bool, since that naming was
deceptive.

BUG=401630

Review URL: https://codereview.chromium.org/447113004

Cr-Commit-Position: refs/heads/master@{#288328}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288328 0039d316-1c4b-4281-b951-d872f2087c98