VideoFrameExternalResources returned needs HOLE for type for VIDEO_HOLE
VideoHole is created with an UNKNOWN pixel format. A recent change then
caused this to no longer return a VideoFrameExternalResources that
indicated the type was HOLE. This change corrects that by moving the
#ifdef block from CreateForSoftwarePlanes into
CreateExternalResourcesFromVideoFrame.
BUG=
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/
1338353003
Cr-Commit-Position: refs/heads/master@{#350010}