Revert "[story_shell] Signal defering of gestures to Session Shell"

This reverts commit 851b99223d0d82c41841f295bd4a733a823c09cc.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> [story_shell] Signal defering of gestures to Session Shell
> 
> Reland this change
> 
> This is a reland of 765a493d254aee97561efec0087feeff12645a58
> 
> Original change's description:
> > [story_shell] Signal defering of gestures to Session Shell
> >
> > In the absence of gesture disambiguation, StoryShell needs to signal to
> > Session Shell whether or not it needs to handle back gestures
> > (This allows us to use the same gesture to dismiss Surfaces and
> > Stories as appropriate).
> >
> > When Story Shell has no dismissible Surfaces in the Story,
> > it signals it is not handling back gestures, and Session Shell can use
> > that gesture to dismiss the story. Otherwise it signals it is handling,
> > and expects Session Shell to defer the gesture.
> >
> > test: manual
> > Change-Id: I0f687c49c1b38f9cb963f5fc6d726fa78b2b17c9
> 
> Change-Id: I649703b25435ad60bbb9497ca26d0a61ac5e8a75

TBR=vardhan@google.com,djmurphy@google.com,lindkvist@google.com,jphsiao@google.com,miguelfrde@google.com,cligh@google.com

Change-Id: I0d1c7582ef12f4b99f7937163616a68522779293
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
8 files changed
tree: cf56166d802e82292ac3b734002f6f0c83f1b5b4
  1. bin/
  2. boards/
  3. build/
  4. cloud/
  5. docs/
  6. examples/
  7. infra/
  8. lib/
  9. packages/
  10. products/
  11. public/
  12. tests/
  13. third_party/
  14. web/
  15. .clang-format
  16. .clang-tidy
  17. .gitignore
  18. AUTHORS
  19. BUILD.gn
  20. CONTRIBUTING.md
  21. LICENSE
  22. navbar.md
  23. PATENTS
  24. README.md
README.md

Peridot

Peridot is a framework for composed, intelligent and distributed user experiences.

Applications not explicitly designed to interoperate (and possibly implemented in different programming languages) are ephemerally downloaded and dynamically composed to run in a shared context. The framework manages application lifecycle, resources and view hierarchy; and well as context and suggestion infrastructure.

State of Peridot experiences is transparently synchronized across user devices using a distributed offline-first storage system.

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