The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/52d7ff244f41063ccbbb9e8adf73186bbf457d87

commit 52d7ff244f41063ccbbb9e8adf73186bbf457d87
Author: Scott Chen <scottchen@chromium.org>
Date: Wed Aug 09 06:07:22 2017

MD Extensions: add ViewManager to handle view transitions.

The transition between views (or "pages") is currently done in 
neon-animated-pages, but neon-animated-pages is now deprecated, and also comes
with a lot of other utilities that we don't use. This CL creates a ViewManager
that replaces neon-animated-pages in handling transition animations.

Only fade-in/out animation will be supported right away (UX approved). But
adding other animations will be easy by adding to the viewAnimations map.

Bug:  751865 
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I7edd37c441ad9d7de86458a48397a6f8699c7b0c
Reviewed-on: https://chromium-review.googlesource.com/600835
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Scott Chen <scottchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#492847}
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/browser_resources.grd
[delete] https://crrev.com/7a6f47e3a5e77e77fcd6334285dcb942db0916d2/chrome/browser/resources/md_extensions/animation_helper.html
[delete] https://crrev.com/7a6f47e3a5e77e77fcd6334285dcb942db0916d2/chrome/browser/resources/md_extensions/animation_helper.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/compiled_resources2.gyp
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/detail_view.html
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/detail_view.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/error_page.html
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/error_page.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/item_list.html
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/item_list.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/keyboard_shortcuts.html
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/keyboard_shortcuts.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/manager.html
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/manager.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/toolbar.html
[add] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/view_manager.html
[add] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/resources/md_extensions/view_manager.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/browser/ui/webui/extensions/extensions_ui.cc
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/test/data/webui/extensions/cr_extensions_browsertest.js
[modify] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/test/data/webui/extensions/extension_manager_test.js
[add] https://crrev.com/52d7ff244f41063ccbbb9e8adf73186bbf457d87/chrome/test/data/webui/extensions/extension_view_manager_test.js