GitLab

The LSI allocators previously did not store a copy of the last generated
LSI. As a result, many call sites would have to keep their own copies.

Now that the LSI allocators have their own copies, the call sites can be
updated to no longer store a separate copy.

RenderFrameProxy is one such call site.

BUG=759031

Change-Id: Id40e679f2c41876fd7e23aa8f2e70817445be420
Reviewed-on: https://chromium-review.googlesource.com/1024747
Commit-Queue: Chris Blume <cblume@chromium.org>
Reviewed-by: Fady Samuel <fsamuel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553724}