Before this CL, we run the cancel animation if the navigation is
waiting for the BeforeUnload message. This is very conservative as a
page can register a BeforeUnload listener but doesn't perform anything.
This CL changes the behavior, in that we only play the cancel animation
to bring the active page back if a BeforeUnload dialog is shown.
Cq-Include-Trybots: luci.chromium.try:android-12-x64-rel,android-12l-x64-dbg,android-13-x64-rel,android-14-x64-rel,android-15-x64-rel,android-pie-x86-rel,android-oreo-x86-rel
Fixed: 364694410
Change-Id: Idbe86b5ae5879965fd0559a60ebb47e5b82d3de7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5919513
Reviewed-by: Khushal Sagar <khushalsagar@chromium.org>
Commit-Queue: William Liu <liuwilliam@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1372747}
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