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This reverts commit 42d682b8.

Reason for revert: Breaks perf tests crbug/1035865

Original change's description:
> Create MemoryManagedPaintCanvas class
> 
> With deferral enabled a canvas rendering context can create an
> unlimited amount of GPU resources between frames. This class allows us
> to track how much memory is being pinned and to flush the recording
> after we pass a certain threshold.
> 
> Bug: 1016727, 1015729
> Change-Id: I3a64dc07cc0239447aa721ea2a7cc808541a0a36
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1960469
> Reviewed-by: Jeremy Roman <jbroman@chromium.org>
> Reviewed-by: Aaron Krajeski <aaronhk@chromium.org>
> Reviewed-by: Yi Xu <yiyix@chromium.org>
> Reviewed-by: Khushal <khushalsagar@chromium.org>
> Reviewed-by: Juanmi Huertas <juanmihd@chromium.org>
> Commit-Queue: Aaron Krajeski <aaronhk@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#726085}

TBR=jbroman@chromium.org,fserb@chromium.org,khushalsagar@chromium.org,yiyix@chromium.org,aaronhk@chromium.org,juanmihd@chromium.org

Bug: 1016727, 1015729,1035865
Change-Id: Ia0e7899b4381ae264ed67ae618d245d6a462067b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1976003Reviewed-by: Stephen Nusko <nuskos@chromium.org>
Commit-Queue: Stephen Nusko <nuskos@chromium.org>
Auto-Submit: Stephen Nusko <nuskos@chromium.org>
Cr-Commit-Position: refs/heads/master@{#726437}