Date picker tests have been flaky on Windows for a long time, and repeatedly require restarting of bots. In the interest of productivity, disabling them on Windows.

Related to #19696

Instead of requiring a name_output.sh, expect a file called
.app_filename in the macos/Flutter directory containing just the name of
the application. The expectation is that the Xcode build will create
that file with a script.

This is not intended as a long-term solution, but it's a substantial
improvement over name_output.sh:
- name_output.sh required constructing the full build output path; this
  made sense when it was coupled with build.sh, but now that the
  decision for where build output goes lives in flutter_tool, that logic
  should as well.
- Changing the name of the application required also updating
  name_output.sh, which is error-prone. With .app_filename, it can be
  created using $PRODUCT_NAME, which means that the usual way of setting
  the application name will automatically update this flow as well.

Part of #30706

1fa483d77 Roll src/third_party/skia 32c32b9a6caa..b3c0bf642613 (14 commits) (flutter/engine#8980) (#32788)


https://github.com/flutter/engine/compare/dd65a8884ee6...1fa483d779f5

git log dd65a8884ee6c35313f2cafd6641e7fe4b127431..1fa483d779f5cf5db890b209cd8a0e902068006f --no-merges --oneline
1fa483d77 Roll src/third_party/skia 32c32b9a6caa..b3c0bf642613 (14 commits) (flutter/engine#8980)

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https://github.com/flutter/engine/compare/62b51ae39875...dd65a8884ee6

git log 62b51ae3987571b270391ed8030186279cc373f1..dd65a8884ee6c35313f2cafd6641e7fe4b127431 --no-merges --oneline
dd65a8884 Roll src/third_party/dart ea9b0cd0f5..57c970d87a (5 commits)

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Allows Windows builds to use the same structure and script as Linux
builds now use, calling into tool_backend to manage copying resources to
the project directory and building the bundle.

Also switches from expecting name_update.bat to expecting flutter\exe_filename
to be written during the build, as with the recent changes to the macOS build, to
reduce the amount of boilerplate needed in a windows\ project directory.

Removed the GestureDetector from the modal bottom sheet that dismissed it on tap and updated several tests to accommodate this change.

* Add buttons to WidgetController and TestPointer

* Add more buttons

* Let TestPointer handle default device

* Use getter only buttons

The PlatformViewsService listens for `viewFocused` calls on the
platform_views system channel and fires a callback that focuses the
focus node for the relevant AndroidView widget.

62b51ae39 Roll src/third_party/skia c8d66d35538c..32c32b9a6caa (15 commits) (flutter/engine#8976) (#32775)


https://github.com/flutter/engine/compare/3cdfa807fa42...62b51ae39875

git log 3cdfa807fa421bac723b1e0b7f972380e73f0f08..62b51ae3987571b270391ed8030186279cc373f1 --no-merges --oneline
62b51ae39 Roll src/third_party/skia c8d66d35538c..32c32b9a6caa (15 commits) (flutter/engine#8976)

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https://github.com/flutter/engine/compare/ce22829cd99a...3cdfa807fa42

git log ce22829cd99a6f527668f1e295cd3e96fcd1c5a2..3cdfa807fa421bac723b1e0b7f972380e73f0f08 --no-merges --oneline
3cdfa807f Replace ararysize macro with fml::size function (flutter/engine#8975)

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https://github.com/flutter/engine/compare/208011758ffe...ce22829cd99a

git log 208011758ffe7705b2b8a88fef3b6c38a3d3c3dd..ce22829cd99a6f527668f1e295cd3e96fcd1c5a2 --no-merges --oneline
ce22829cd Roll src/third_party/skia 348880c3f67f..c8d66d35538c (6 commits) (flutter/engine#8973)
81b6f7bec Roll src/third_party/dart a0290f823c..ea9b0cd0f5 (86 commits)

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https://github.com/flutter/engine/compare/849fa42a06a5...208011758ffe

git log 849fa42a06a5c09ade2d88e48d982e069f68d969..208011758ffe7705b2b8a88fef3b6c38a3d3c3dd --no-merges --oneline
208011758 Roll src/third_party/skia 3f79f07a14eb..348880c3f67f (3 commits) (flutter/engine#8971)
45599515d Roll src/third_party/skia c8a84d2b7ff9..3f79f07a14eb (1 commits) (flutter/engine#8968)
f5fa03b5e Use Android text selection shifting API to handle keyboard backspace (flutter/engine#8956)

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https://github.com/flutter/engine/compare/832cdacc6f95...849fa42a06a5

git log 832cdacc6f955f080734109900a1658ae7e0d248..849fa42a06a5c09ade2d88e48d982e069f68d969 --no-merges --oneline
849fa42a0 Revert "Roll src/third_party/dart a0290f823c..6d5f763952 (70 commits)" (flutter/engine#8969)
10742e77a Roll src/third_party/dart a0290f823c..6d5f763952 (70 commits)
55ff8d60b Revert "Roll src/third_party/dart a0290f823c..6d5f763952 (70 commits)" (flutter/engine#8966)
704b6eead Roll src/third_party/dart a0290f823c..6d5f763952 (70 commits)

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Correct docs and error message for UiKitViewController to refer to iOS
view rather than Android views. Minor cleanup to the docs for
PlatformViewsService, which previously mentioned Android only.

This implements focus and hover handling for Material buttons. It inserts Focus widgets into the tree in order to allow buttons to be focusable via keyboard traversal (a.k.a. TAB traversal), and Listener widgets into the InkWell to allow the detection of hover states for widgets.

Addresses #11344, #1608, and #13264.

This fixes propagation of needsCompositing from child widgets.

When needsCompositing is turned on by a child widget, it necessarily sets the needsCompositing bit of its parent widget, but RenderPointerListener was ignoring that piece of information and only turning on compositing if it thought it needed it for itself.

This corrects that, and adds a test for the condition, and updates a test that was affected by the change.

Fixes #32525 (again)

832cdacc6 Roll src/third_party/skia 4167215daf0e..c8a84d2b7ff9 (9 commits) (flutter/engine#8964) (#32722)


https://github.com/flutter/engine/compare/d0dc9b94d4a9...832cdacc6f95

git log d0dc9b94d4a9a3657c6717ba16b7590f273fe1e1..832cdacc6f955f080734109900a1658ae7e0d248 --no-merges --oneline
832cdacc6 Roll src/third_party/skia 4167215daf0e..c8a84d2b7ff9 (9 commits) (flutter/engine#8964)

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Eliminates the need for a build.bat in the Windows build workflow, adding
preliminary support for building using msbuild. The handling of
vcvars64.bat may be refined in the future, but this serves as a starting point.

https://github.com/flutter/engine/compare/66087301cd9a...d0dc9b94d4a9

git log 66087301cd9a18ad2c2087412c71f552a2ec76c2..d0dc9b94d4a9a3657c6717ba16b7590f273fe1e1 --no-merges --oneline
d0dc9b94d Rename frame_time and engine_time (flutter/engine#8952)

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Added 'enabled' property to the PopupMenuButton to allow the button to be disabled in the case where the menu would be empty.

https://github.com/flutter/engine/compare/a89cf80d4de5...66087301cd9a

git log a89cf80d4de5dbd93d72958cd1f0b26eb6a0b3e2..66087301cd9a18ad2c2087412c71f552a2ec76c2 --no-merges --oneline
66087301c Roll tonic and update #includes (flutter/engine#8950)
a89531561 Roll src/third_party/skia c2aea5938d0d..4167215daf0e (5 commits) (flutter/engine#8961)

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Add a more meaningful message to the assertion on children property of MultiChildRenderObjectWidget and SliverChildListDelegate. (#32487)

* Updating dart.dev related links

* Update packages/flutter_tools/lib/src/base/context.dart

This reverts commit 18ca3754.

a89cf80d4 Roll src/third_party/skia 136ad09848f5..c2aea5938d0d (1 commits) (flutter/engine#8958) (#32700)


https://github.com/flutter/engine/compare/4238163010cc...a89cf80d4de5

git log 4238163010cc4f5d988c7737501a9387cd0c6560..a89cf80d4de5dbd93d72958cd1f0b26eb6a0b3e2 --no-merges --oneline
a89cf80d4 Roll src/third_party/skia 136ad09848f5..c2aea5938d0d (1 commits) (flutter/engine#8958)

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423816301 Roll src/third_party/skia 4e66df54e7da..136ad09848f5 (2 commits) (flutter/engine#8957) (#32685)


https://github.com/flutter/engine/compare/49bc9c86c967...4238163010cc

git log 49bc9c86c967cb3b57e211f5e03868dd7147984a..4238163010cc4f5d988c7737501a9387cd0c6560 --no-merges --oneline
423816301 Roll src/third_party/skia 4e66df54e7da..136ad09848f5 (2 commits) (flutter/engine#8957)

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Added diagnostic output for needsCompositing to RenderObject diagnostics output.

49bc9c86c Roll src/third_party/skia 0221e8b22687..4e66df54e7da (5 commits) (flutter/engine#8955) (#32671)


https://github.com/flutter/engine/compare/5ac2d02645a2...49bc9c86c967

git log 5ac2d02645a240609b319aaead5ccb1fb845fa02..49bc9c86c967cb3b57e211f5e03868dd7147984a --no-merges --oneline
49bc9c86c Roll src/third_party/skia 0221e8b22687..4e66df54e7da (5 commits) (flutter/engine#8955)

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https://github.com/flutter/engine/compare/c83ec26f351f...5ac2d02645a2

git log c83ec26f351fed56341a8959d1d711c7ec2fe423..5ac2d02645a240609b319aaead5ccb1fb845fa02 --no-merges --oneline
5ac2d0264 Avoid disabling sources assignment filters are these have been removed. (flutter/engine#8954)
51486a549 New Plugin API PR2: Introduces ActivityAware, ActivityControlSurface, and ActivityPluginBinding. (flutter/engine#8943)
b3b817a9b Add a minimal set of symbols to the dynamic symbol table for Linux executables (flutter/engine#8937)
96ffc893e Copy the Dart Runner from //topaz into the engine. (flutter/engine#8949)

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https://github.com/flutter/engine/compare/904cfc4fe363...c83ec26f351f

git log 904cfc4fe3631103c656ba617d9768a832d3622a..c83ec26f351fed56341a8959d1d711c7ec2fe423 --no-merges --oneline
c83ec26f3 Roll Tonic (flutter/engine#8940)

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This fixes #32525, because it now marks the compositing bits as needing to be recalculated if the mouse tracker changes its idea of whether or not a mouse is attached.

This bug occurred because the test framework was leaking state from one test to the next (the state about whether a mouse pointer was active), and so even though there was a "passing" test when run in order with the other tests in the file, when the test was run individually (or first), it would have failed and caught the bug.

This adds an assert to make sure that after each test there are no simulated mouse pointers connected, and now calls removePointer in all of the tests where this was a problem.

Some parts of the appbundle build process were based on the logic for building
APK packages.  However, these steps (copying to a directory shared by all
build variants, and calculating a SHA) are not necessary for an appbundle.