Reland "[lensoverlay] Pass bitmap directly to WebUI instead of encoding to JPEG"

This reverts commit 8261abbf56712d2e2812cd4ceaa601f20e16098a.

Reason for revert: Fixed LensOverlay.TextSelection, and believe I fixed
                   the flakiness for tests using SimulateLeftClickDrag.

Original change's description:
> Revert "[lensoverlay] Pass bitmap directly to WebUI instead of encoding to JPEG"
>
> This reverts commit 71f921cac550fcc4c45855c3830dd1f00bb6ad79.
>
> Reason for revert: Suspicious about causing test failures of
> LensOverlayTest.TextSelection
> LensOverlayControllerSearchBubbleDisabled.PreselectionToastDisappearsOnSelection
> https://ci.chromium.org/ui/p/chromium/builders/ci/Mac11%20Tests/30294/overview
>
> Original change's description:
> > [lensoverlay] Pass bitmap directly to WebUI instead of encoding to JPEG
> >
> > Passing the bitmap directly to the WebUI, helps in a couple ways.
> >   1) It moves the encoding to JPEG into the renderer process, therefore
> >      removing it from the critical path on the main thread.
> >   2) Passes the pixels as shared memory to the WebUI.
> >   3) Removes the need for data URIs.
> >
> > With this approach, we saw slight wins on M1 macbooks, and significant
> > wins (25% improvement) in the time it takes to go from capturing the
> > screenshot to rendering it to the user. This approach also sets up
> > an additional win by drawing the bitmap and rendering directly in the
> > JS canvas, which should be a big win, since the bottleneck in this flow
> > is the call to toBlob().
> >
> > This is step 1 of many to come CLs to improve our invocation time. See
> > bug for more details.
> >
> > NO_IFTTT= New line added by git cl format
> >
> > Bug: b:352622136
> > Change-Id: I25573e2600a9ae7a0b1b05133f03d65e6293f7b2
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5770332
> > Reviewed-by: Erik Chen <erikchen@chromium.org>
> > Commit-Queue: Duncan Mercer <mercerd@google.com>
> > Cr-Commit-Position: refs/heads/main@{#1341186}
>
> Bug: b:352622136
> Change-Id: I828b4e351db55f01e92f53ee2affd9ccac60cedb
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5782680
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Auto-Submit: Yuki Shiino <yukishiino@chromium.org>
> Owners-Override: Yuki Shiino <yukishiino@chromium.org>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#1341425}

Bug: b:352622136
Change-Id: If1fc6262df29319d536eab20d0f3b1301d9cb2bb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5789068
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Commit-Queue: Duncan Mercer <mercerd@google.com>
Cr-Commit-Position: refs/heads/main@{#1342256}