Interface changes to allow wasm debugger to load multi frame SKPs. Adds a frame playback slider when a multiframe file is loaded.
Interface changes to allow wasm debugger to load multi frame SKPs.
Adds a frame playback slider when a multiframe file is loaded.

Bug: 9175
Change-Id: Id93be7b8b05e41567c6fe49a86da259e96ffc15b
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/222877
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Nathaniel Nifong <1ce561679465ea4956c6210637580cd7ba456816@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot