https://github.com/flutter/flutter/issues/22338#issuecomment-425794734 shows almost 1 minute being spent on the `Resolving Dependencies` step alone. Possibly this needs to go higher still, but this should be a good start.

https://github.com/flutter/engine/compare/cf0855e69fa8...90b1023c84c4

git log cf0855e69fa8..90b1023c84c4 --no-merges --oneline
90b1023c8 Remove unused imports and variables (flutter/engine#6437)
1f98aa6df Add the isolate name server to the set of native APIs available on secondary isolates (flutter/engine#6444)


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https://github.com/flutter/engine/compare/45c5fe5613cb...cf0855e69fa8

git log 45c5fe5613cb..cf0855e69fa8 --no-merges --oneline
cf0855e69 Roll Dart to version  c6254163dc7a5f704d7609af65e4650ef0550ccd (flutter/engine#6439)
2fa1ab9de Roll src/third_party/skia d95303e10cbc..4302eb9a6e14 (12 commits) (flutter/engine#6443)


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This reverts commit fef759f4, because apparently
the service is still "unavailable".

https://github.com/flutter/engine/compare/c8755d74c17e...45c5fe5613cb

git log c8755d74c17e..45c5fe5613cb --no-merges --oneline
45c5fe561 Remove touch mapper and respect the UITouch phase when calculating the pointer data change type. (flutter/engine#6430)
234736801 Roll src/third_party/skia 66a973493468..d95303e10cbc (13 commits) (flutter/engine#6440)


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This reverts commit 9eca0830 to turn on
docs generation again, since now we have paid...

The Gallery deployment was missing some secrets in order to correctly deploy. This adds those missing secrets as encrypted env vars.

Apparently, this accounts for 13% of our crashes in Beta.

I missed some create template conversions in the devicelab directory.

Fixes the build after my module rename broke the Windows tests.

This renames the "module" template to the "application" template, and makes "application" the default. The existing "app" template is now deprecated.

flutter create also now recognizes the type of project in an existing directory, and is able to recreate it without having the template type explicitly specified (although you can still do that). It does this now by first looking in the .metadata file for the new project_type field, and if it doesn't find that, then it looks at the directory structure. Also, the .metadata file is now overwritten even on an existing directory so that 1) the project_type can be added to legacy projects, and 2) the version of Flutter that updated the project last is updated.

I also cleaned up a bunch of things in create_test.dart, added many more tests, and added an example test to the test/ directory in the generated output of the application template.

Fixes #22530
Fixes #22344

https://github.com/flutter/engine/compare/74e68ff8b108...c8755d74c17e

git log 74e68ff8b108..c8755d74c17e --no-merges --oneline
c8755d74c Update FlutterFrontendCompiler.rejectLastDelta to match the signature in CompilerInterface (flutter/engine#6426)


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git log 7e3b41dc7ba6..74e68ff8b108 --no-merges --oneline
74e68ff8b Roll src/third_party/skia 7b7805581733..66a973493468 (4 commits) (#6436)
58fbd1fd1 Roll src/third_party/skia 4442e3138927..7b7805581733 (1 commits) (#6435)
83151d9fc Roll src/third_party/skia 4dd17156c6e4..4442e3138927 (1 commits) (#6434)
5fe7e377d Roll src/third_party/skia 8841085abeb9..4dd17156c6e4 (1 commits) (#6432)
5340f4224 Revert "Use single_root_scheme when compiling platform (#6402)" (#6431)
37fd43d43 Add deadline_now_delta argument to Engine::NotifyIdle's trace (#6419)
4af077b29 Roll src/third_party/skia 4504a652c071..8841085abeb9 (1 commits) (#6429)
165f3dd1c Update //third_party/benchmark dependency to 21f1eb (ToT). (#6427)
34bd0ef87 Don’t build benchmarking binaries on Windows. (#6428)
ae4db4469 Ensure setViewIdResourceName has the correct version guard (#6404)
2c5d0c407 [rapidjson] Fix import statements (#6418)
c2128fc80 Create a benchmarking target for the shell. (#6420)
30f78af91 Raise errors on non-zero exits while creating artifacts on the bots. (#6424)
191168cec Disable line_height tests on Windows (#6423)
061cc6643 Fix ideographic baseline to match spec. (#6422)
74eac1f56 Roll src/third_party/skia bfa76f20bfcf..4504a652c071 (14 commits) (#6421)
10b45405b Implement ParagraphStyle.line_height and add tests for line_height and baselines. (#6417)

* Vertical divider bug fix and additional cleaning.

* added sample code for scaffold widget [#21136]

* Fixed indent and spacing for scaffold sample code

* Update scaffold.dart

Fix one more formatting issue

Previously flutter_tools had used "gradle properties" to find the build types
and flavors supported by the Gradle project.  Tasks should work more reliably
across different versions of the Android Gradle plugin.

Fixes https://github.com/flutter/flutter/issues/20781

* Adding Changelog URL to the README.md file

* Update README to match the latest version on DEV

- Update README to match the latest version on DEV branch 
- Add Changelog URL

* Update README.md

Fix contributing link

This reverts commit ec0df111.

https://github.com/flutter/engine/compare/74662ab69523...7e3b41dc7ba6

git log 74662ab69523..7e3b41dc7ba6 --no-merges --oneline
7e3b41dc7 Roll src/third_party/skia 08417bccf256..bfa76f20bfcf (4 commits) (flutter/engine#6416)
69ae5694d Do not register UI-related native functions in secondary isolates (flutter/engine#6401)
19c135c67 Roll src/third_party/skia b627af80e3a4..08417bccf256 (8 commits) (flutter/engine#6415)
65b886ba9 Roll src/third_party/skia be8193c9313a..b627af80e3a4 (1 commits) (flutter/engine#6414)
360d44668 Use single_root_scheme when compiling platform (flutter/engine#6402)
c7a5abf98 Roll src/third_party/skia deb512045e6a..be8193c9313a (1 commits) (flutter/engine#6413)

The AutoRoll server is located here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll

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* Revert "Custom offset functionality for Popup Menu Button (#22534)"

This reverts commit f44b277f.

* Revert "Updated the ColorScheme dartdoc: a11y (#22618)"

This reverts commit aa6a27e8.

* Revert "Added support for the Khmer (km) language (#22617)"

This reverts commit 3a87b93f.

* Revert "Use 'Future<void>' insted of 'Future<Null>' in SystemChrome (#22583)"

This reverts commit 37c10acb.

* Revert "Choice Chip Fix (#22589)"

This reverts commit 8d76d37f.

* Revert "Throw if trying to set fs.currentDirectory in tests (#22037)"

This reverts commit 2f6155bf.

* Revert "Use (processors-1) for test runs (test defaults to processors/2) (#22085)"

This reverts commit d44f0030.

The only reds on the dashboard for this test are on rows that have many failures across the run; this does not appear to be at all flaky.

* Adds offset functionality to popup menu
* Adds a test

* choice chip fix

* added test

* Block setting of fs.currentDirectory in tests

This isn't perfect, it only covers tests using testUsingContext, but that is the huge majority of tests.

* Tweak error message.

* Use (processors-1) for test runs (test defaults to processors/2)

* Add missing import 🙄

https://github.com/flutter/engine/compare/f6af1f20ba92...74662ab69523

git log f6af1f20ba92..74662ab69523 --no-merges --oneline
74662ab69 Revert "Share engine layers with the framework" (flutter/engine#6412)
2de87a80f Roll src/third_party/skia 6719fcc43b1e..deb512045e6a (7 commits) (flutter/engine#6411)
68a42e3f4 Add nullability annotations to MethodChannel/MethodCall. (flutter/engine#6393)
71ba20a64 Dart SDK roll for 2018-10-02 to d2c5a24fd9ead97a7f18d02786e679293cc3709e (flutter/engine#6410)
9ccc96625 Share engine layers with the framework (flutter/engine#6406)
fa719e3e7 Roll src/third_party/skia cc4dbfcfbd8a..6719fcc43b1e (17 commits) (flutter/engine#6409)
dc2634dcf Force lf-line endings for so that source offsets match across platforms. (flutter/engine#6408)
44a514943 Roll src/third_party/skia 7dae882574d2..cc4dbfcfbd8a (15 commits) (flutter/engine#6405)
de32c659b Roll src/third_party/skia 3b8b11e1f912..7dae882574d2 (15 commits) (flutter/engine#6403)
3a9c22afd Allow GetRectsForRange to provide more detailed/nuanced metrics through RectStyle enum. (flutter/engine#6335)
b59c86493 Rename the Android fragment support library JAR (flutter/engine#6400)
4213ac19c Add an Android fragment support library to third_party (flutter/engine#6384)
a785b25f4 do not count Hidden nodes at the beginning of the scrollable (flutter/engine#6381)

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