GitLab

This reverts commit 1dc90fac.

Reason for revert: suspect for causing flakes in
DomDistillerViewerSourceBrowserTest.PrefPersist

BUG=1004663

Original change's description:
> Populate the distilled content slightly earlier
> 
> Before this CL, the distilled content is injected on DidFinishLoad(),
> or when the distillation finishes if it's later than DidFinishLoad().
> When the DidFinishLoad() event propagates to TalkBack, the distilled
> content is usually not there yet, so TalkBack would announce the
> content of the place-holding page.
> 
> This CL populates the distilled content in DocumentLoadedInFrame()
> instead of DidFinishLoad(). DocumentLoadedInFrame() is late enough to
> execute JavaScript, and is early enough so that it's more likely that
> the title and content can be picked up by TalkBack instead of the
> placeholder.
> 
> If distillation is finished by DocumentLoadedInFrame(), onload() event
> would also be delayed, so that the accessibility focus is more likely
> to be on the web content. Otherwise, the focus is usually on the close
> button of the CustomTab (CCT), or nowhere.
> 
> Note that this CL doesn't guarantee the distilled title is announced
> by TalkBack. If distillation finishes later than
> DocumentLoadedInFrame(), or if for some reason the accessibility focus
> is on the close button of the CCT, the title would go unannounced like
> before.
> 
> Bug: 811417, 803474
> Change-Id: Iaf2ff988b427ca9af582622597b505e7a8aca8e1
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1791048
> Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
> Reviewed-by: Matthew Jones <mdjones@chromium.org>
> Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#697074}

TBR=dmazzoni@chromium.org,mdjones@chromium.org,wychen@chromium.org

Change-Id: I6af4de1fa2a872402f9abe13321f5d1af8e09d75
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 811417, 803474
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1807495Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Commit-Queue: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697128}