* added shortcuts and delete functionality

* added first test

*  afew chnages

* a few changes

* hope this works

* small change

* small changes

* fixed nits

* final changes:

* fixed initializing formals

* update comment

* minor change:

* added line

* final changes

* random change

* changed function to void

* one more

* removed line

* dis betta work

* final change

* actual final chnge

Fixes #21250

https://github.com/flutter/engine/compare/269880b761a5...d52e5cca03fb

git log 269880b761a5..d52e5cca03fb --no-merges --oneline
d52e5cca0 Roll src/third_party/skia cd9d074578e0..a2bc1ca21bbc (8 commits) (flutter/engine#6211)


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

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

https://github.com/flutter/engine/compare/1770f8854835...269880b761a5

git log 1770f8854835..269880b761a5 --no-merges --oneline
269880b76 Roll src/third_party/skia 40c7c64572bc..cd9d074578e0 (6 commits) (flutter/engine#6210)


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

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

* [Material] Corrects default switch color.

* [Switch] Making black32 a local const.

* [Switch] Tests for default colors.

* [Switch] Correcting number for being over 255.

https://github.com/flutter/engine/compare/5c1a826eec4d...1770f8854835

git log 5c1a826eec4d..1770f8854835 --no-merges --oneline
1770f8854 Remove mention of Garnet/Topaz from license (flutter/engine#6209)


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

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

https://github.com/flutter/engine/compare/e27a2e955bc3...5c1a826eec4d

git log e27a2e955bc3..5c1a826eec4d --no-merges --oneline
5c1a826ee Roll src/third_party/skia a3dc329d1db1..40c7c64572bc (1 commits) (flutter/engine#6208)
bf3c22419 Roll src/third_party/skia 2810c856dfa2..a3dc329d1db1 (1 commits) (flutter/engine#6206)
b9523318c Allow embedders to specify a custom GL proc address resolver. (flutter/engine#6204)
bf96dbed3 Revert "Some cleanups enabled by removing support for Dart. (#5621)" (flutter/engine#6205)
335811560 Roll src/third_party/skia 094b3eaf479c..2810c856dfa2 (6 commits) (flutter/engine#6203)
4c2448d15 Some cleanups enabled by removing support for Dart. (flutter/engine#5621)


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

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

* Update fuchsia-tester so it takes map of kernel test files

* Set mainDart correctly. Cleanup nits.

* update gitignore template to mirror

* Add a newline to end of doc

* remove Android/ and iOS/ subfolder gitignores

Fixes https://github.com/flutter/flutter/issues/21215

* Fix Dropdown where icon not set to end of button

* Expand DropdownButton based on isExpanded flag

* Add dropdown golden tests

Fixes #13135, #16606

Now that Dart 1 support has been eliminated, generator should always be
populated to a kernel compiler instance.

Also moves the constructor to the top of the class, and orders final
fields before non-final fields, as dictated by the style guide.

This tickled a bug in KernelCompiler.compile() where the fingerprinter
doesn't include the outputFilePath in its list of dependencies. As such,
if the output .dill file is missing or corrupted, the fingerprint still
matches and re-compile is skipped, even though it shouldn't be. I'll fix
that in a followup, then look at how this triggered that issue. My
hypothesis is that that it's due to the aot kernel compile and bundle
kernel compile have separate output directories for the .dill files
(build/ vs build/aot) but the same output directory for the associated
depfiles (due to this patch).

This reverts commit 43a106e9.

This reverts commit 6e7f3e6f.

* added shortcuts and delete functionality

* added first test

*  afew chnages

* a few changes

* hope this works

* small change

* small changes

* fixed nits

* final changes:

* fixed initializing formals

* update comment

* minor change:

* added line

* final changes

The --snapshot argument was only necessary in Dart 1. The --depfile
argument was only used in Dart 2 mode to pass to the kernel compiler,
but was inconsistent with the 'build aot' command, where the depfile was
always set to build/kernel_compile.d.

This patch updates 'build bundle' to emit the depfile to a location
consistent with the 'build aot' command; since it's not intended to be
user-configurable and flutter.gradle hardcodes the location to
build/kernel_compile.d either way, this patch also eliminates the
ability to configure the filename altogether.

Revert "Revert "Enable taking screenshots of arbitrary RenderObjects from a running a… (#20637)" (#21395)" (#21448)

This reverts commit 5b5a5b82.

* lint unnecessary_new on samples

* fix tests

* Added music_note icon

This reverts commit 343b5703.

Reverting because the assert introduced in framework.dart(inheritFromElement) is breaking certain Mulligan pages. @hixie suspects it might be due to global keys.

* Update goldens for flutter/engine#6184

* Roll engine to 9b297b3b51228...

* Add build test for Flutter codelabs

* Fix indentation in build test script

* Correct filename for the codelabs build test run by travis

* Change if statement to elif

* Replace echo statements with set -x

* Add BSD-style license

* Add codelabs build test to Cirrus

* Remove codelabs_build_test from Travis.

* Remove codelabs_build_test from travis_script.sh

* Update documentation for codelabs_build_test.sh

* Update readme for build test

* Add link to open a new issue to MDC-Flutter

* Add phrase to address "if you think you really need to break this test, please escalate this"

https://github.com/flutter/engine/compare/de4c7a53f21c...5f61056946ef

git log de4c7a53f21c..5f61056946ef --no-merges --oneline
5f6105694 Revert "Dart SDK roll for 2018/09/04 (#6161)" (flutter/engine#6183)
897178cc3 Roll src/third_party/skia 71f8475a0dba..33d3d31a7e28 (6 commits) (flutter/engine#6182)
1768bedcf Roll src/third_party/skia ffbcc3fadfa1..71f8475a0dba (3 commits) (flutter/engine#6181)
ade0f2230 Remove unused file picture_serializer. (flutter/engine#6179)
572753fb1 Roll src/third_party/skia 343553a1fe9e..ffbcc3fadfa1 (6 commits) (flutter/engine#6178)
108e0a64e Add transparency helpers to FlutterView.java (flutter/engine#6172)
f6ad3e096 Roll Tonic (flutter/engine#6177)
a0f30b3b0 Roll src/third_party/skia 9d1c88d9912d..343553a1fe9e (16 commits) (flutter/engine#6175)
e6d9b34a8 Remove the old location of the ICU data asset (flutter/engine#6170)
9f0ad8b79 Fixes negative end selection offset. (flutter/engine#6171)
0981731fd Enable transparent FlutterViews (flutter/engine#6163)
3a7d0b559 Roll buildroot to 7aadfaf196f9cd8a299f9ad78fab63362800466d (flutter/engine#6169)
564d214b7 Roll src/third_party/skia d0f0cb8ffc5e..9d1c88d9912d (12 commits) (flutter/engine#6168)
6af60d716 Remove obsolete discovery mechanism from FlutterView (flutter/engine#6157)
b22badf1d Dart SDK roll for 2018/09/04 (flutter/engine#6161)
6d0fbc7eb Roll src/third_party/skia 9478f7a38e6c..d0f0cb8ffc5e (1 commits) (flutter/engine#6167)
5063a8a5b Roll src/third_party/skia 72a02112a99f..9478f7a38e6c (1 commits) (flutter/engine#6166)
19a3bc8e1 Roll src/third_party/skia 85f4e40c5481..72a02112a99f (1 commits) (flutter/engine#6165)
9643a50ac Roll src/third_party/skia fddc6fa394cb..85f4e40c5481 (1 commits) (flutter/engine#6164)
6ad3183b1 Fix windows build. (flutter/engine#6162)
30af2f299 Roll src/third_party/skia e486bbaae296..fddc6fa394cb (2 commits) (flutter/engine#6159)
b32ceafb1 Add some more logs for diagnosing screenshot failures (flutter/engine#6156)
c173655b2 Roll src/third_party/skia b84576af0a43..e486bbaae296 (9 commits) (flutter/engine#6155)
aaf98fbfe Use double multiplication by a scale instead of 3 divides for speed. (flutter/engine#6154)
593ed5914 Revert "Use Skia normalize again after Skia precision fix. (#6121)" (flutter/engine#6122)
137389a85 Roll src/third_party/skia a45e1a71f548..b84576af0a43 (16 commits) (flutter/engine#6153)
f89a386a1 Roll src/third_party/skia cff3fd834ca8..a45e1a71f548 (1 commits) (flutter/engine#6152)
b0b8daa7b Unregister onFrameAvailable callbacks when a TextureEntry is released. (flutter/engine#6079)
2dc8271a4 Roll src/third_party/skia 24e58341fbcd..cff3fd834ca8 (1 commits) (flutter/engine#6151)
eea3a21e1 Roll src/third_party/skia bf67741140fd..24e58341fbcd (2 commits) (flutter/engine#6148)
bdcbe801a Roll src/third_party/skia 88119de2b849..bf67741140fd (1 commits) (flutter/engine#6147)

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

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

* Scale high-pixel-ratio images with BoxFit.none/BoxFit.scaleDown correctly

* add test cases for image scale

* make analyzer happy

* Make sure that test images always have a scale to make all tests pass

* add a new author

* use new keyword in tests