chrome/android: Push EventFilters into the Layout implementations.
EventFilters are currently built by the LayoutManager and all gestures
are routed through it to the active layout. This indirection is
unnecessary since only the StackLayout requires gesture handling. This
also ends up exposing public APIs on the Layouts making it difficult to
follow the path for events from different sources (CompositorView vs
the Toolbar).
This change pushes EventFilters deeper into the Layout implementations,
so the Layouts directly consume touch events and generate gestures if
necessary. Layout still has an API for swipe gestures coming from the
toolbar.
BUG=
Review-Url: https://codereview.chromium.org/2774443002
Cr-Original-Commit-Position: refs/heads/master@{#459980}
Committed: https://chromium.googlesource.com/chromium/src/+/ef25f0df9d626028752de7d945d89abe15d39dfb
Review-Url: https://codereview.chromium.org/2774443002
Cr-Commit-Position: refs/heads/master@{#460525}
14 files changed
