drm_hwcomposer: Add Dump() to the Compositor interface

Add a Dump() function to the Compositor base class and pipe it
through hwcomposer. This can be invoked from the shell by
running "dumpsys SurfaceFlinger".

Change-Id: I87646f4e926ac6d52a04ba130957abdfab99c491
Signed-off-by: Sean Paul <seanpaul@chromium.org>
3 files changed