Adds avatarBorder property to SelectableChipAttributes and uses the outer path to draw the darkened layer.

This reverts commit 08538f91.

* Adds start behavior option to the drag gesture recognizer and makes it the default option when a drag gesture recognizer is created. Also fixes all the tests to work correctly with the new default behavior.

https://github.com/flutter/engine/compare/716185fb7955...7112b72cc229

git log 716185fb7955fe6480964336e674a5c68048a6c1..7112b72cc229e05d36716c3d7739885d3ffa72e6 --no-merges --oneline
7112b72cc Roll src/third_party/skia caf4f9241217..3ac3a4053f86 (1 commits) (flutter/engine#7388)
714856123 Roll src/third_party/skia d6f349750bfd..caf4f9241217 (2 commits) (flutter/engine#7386)
888d999c0 Roll src/third_party/skia e9d28bdbe577..d6f349750bfd (1 commits) (flutter/engine#7384)
67c9a235d Roll src/third_party/skia 4de2f1fead6a..e9d28bdbe577 (1 commits) (flutter/engine#7383)
0a656dc87 Roll src/third_party/skia 82ebe04caff2..4de2f1fead6a (1 commits) (flutter/engine#7382)
debbf30b6 Roll src/third_party/skia b282e1f622f6..82ebe04caff2 (1 commits) (flutter/engine#7381)

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

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the roller if necessary.

Fixes https://github.com/flutter/flutter/issues/22370

* Report hot reload statistic

* Lints

* Introduce custom dimensions identifiers to track hot reload stats

716185fb7 Roll src/third_party/skia 125f76790131..b282e1f622f6 (1 commits) (flutter/engine#7380) (#26118)


https://github.com/flutter/engine/compare/cd0de779eadd...716185fb7955

git log cd0de779eadd367531df00b6ff693b02009595e8..716185fb7955fe6480964336e674a5c68048a6c1 --no-merges --oneline
716185fb7 Roll src/third_party/skia 125f76790131..b282e1f622f6 (1 commits) (flutter/engine#7380)

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https://github.com/flutter/engine/compare/83239e141b09...cd0de779eadd

git log 83239e141b090aabe0e95fe8be8057c5710be89e..cd0de779eadd367531df00b6ff693b02009595e8 --no-merges --oneline
cd0de779e Roll src/third_party/skia 5e710e13a55b..125f76790131 (1 commits) (flutter/engine#7379)
7ded1d3d6 Roll src/third_party/skia 3d5b488e5cd7..5e710e13a55b (1 commits) (flutter/engine#7378)
bcc7dcbe7 Revert "Test SDK roll" (flutter/engine#7374)
ee83c383b Roll src/third_party/skia 275eaff3be4b..3d5b488e5cd7 (9 commits) (flutter/engine#7372)
a4450af55 Dart SDK roll for 2019-01-04
b35f021a8 Update GetCallbackHandle to use Dart_IsTearOff instead of a string comparison (flutter/engine#7324)
4ea457355 Roll src/third_party/skia 18df87ec8bda..275eaff3be4b (7 commits) (flutter/engine#7369)
27eaab4f6 Roll src/third_party/skia 5f1692c60a43..18df87ec8bda (12 commits) (flutter/engine#7368)
9fb8f8bdf Roll src/third_party/skia c519fed6ddce..5f1692c60a43 (1 commits) (flutter/engine#7367)

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

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https://github.com/flutter/engine/compare/e52287a1b557...83239e141b09

git log e52287a1b5572c73b19d085ccbe404f0aeddb5f6..83239e141b090aabe0e95fe8be8057c5710be89e --no-merges --oneline
83239e141 Roll src/third_party/skia 76616a10a786..c519fed6ddce (3 commits) (flutter/engine#7366)
62b9594d2 Roll src/third_party/skia 4683942a45f6..76616a10a786 (8 commits) (flutter/engine#7365)
23d087420 Roll Dart to version ec86471ccc47a62df8b4009e1fb37c66ff9dc91b (flutter/engine#7363)
78f6eb5c8 Roll src/third_party/skia 3b7e65107f67..4683942a45f6 (10 commits) (flutter/engine#7362)

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Cirrus puts the PR description and commit message in environment
variables.
These messages tend to have non ASCII characters sometimes (like
emojis), which triggers a Gradle bug (gradle/gradle#3117) resulting
in Gradle crashing without a helpful error message.

The real solution to this problem should be fixing the Gradle bug.
The better workaround on the Flutter side would be to set a UTF8 locale
on the Cirrus machine, but I have yet figured out how to do it.
For now to avoid more people from hitting this I'm working around by
temporarily unsetting the Cirrus environment variables with the PR
description and commit message.

A non ASCII character to make sure it works: 😄

https://github.com/flutter/engine/compare/134b65ec6034...e52287a1b557

git log 134b65ec6034cdd9823ed5631df248d27870306e..e52287a1b5572c73b19d085ccbe404f0aeddb5f6 --no-merges --oneline
e52287a1b Fix typo clas -> class (flutter/engine#7360)
80c19b6b1 Roll src/third_party/skia 8966b55644c2..3b7e65107f67 (3 commits) (flutter/engine#7361)
beed0c455 Roll src/third_party/skia fdde2926df92..8966b55644c2 (1 commits) (flutter/engine#7359)

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* Ensure all errors thrown by image providers can be caught by developers.

Add an `onError` parameter to the ImageCache.putIfAbsent method.
In the event that an error is thrown when resolving an image, catch if
this parameter is provided. Use the onError parameter to ensure that all
errors thrown are forwarded to the ImageStream error channel instead of
directly into the void.

https://github.com/flutter/engine/compare/2940812ab26a...134b65ec6034

git log 2940812ab26a9dac772459888f1e79389bedb977..134b65ec6034cdd9823ed5631df248d27870306e --no-merges --oneline
134b65ec6 Roll src/third_party/skia aae6ae39a356..fdde2926df92 (1 commits) (flutter/engine#7358)
f97edf2ac Roll src/third_party/skia 96345a23dfa9..aae6ae39a356 (1 commits) (flutter/engine#7357)
d051c47e5 Roll src/third_party/skia bc84adceaada..96345a23dfa9 (2 commits) (flutter/engine#7356)
15fcba4d8 Roll src/third_party/skia d0d5bb8c8500..bc84adceaada (6 commits) (flutter/engine#7355)
4d353de49 Preparing to remove SK_SUPPORT_LEGACY_PAINT_TEXTMEASURE (flutter/engine#7354)
54d7c4256 Paint all backgrounds first to prevent overlap (flutter/engine#7287)
0ad16dd10 Roll src/third_party/skia 279b65ddb5a3..d0d5bb8c8500 (12 commits) (flutter/engine#7353)
8cca33aea Give more control over when dynamic patches get downloaded and installed. (flutter/engine#7327)
2d291c7ff Roll src/third_party/skia 8f37ce5b9f2c..279b65ddb5a3 (6 commits) (flutter/engine#7350)

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

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* Add didSendFirstFrameEvent service extension.

2940812ab Roll src/third_party/skia 1409ac718693..8f37ce5b9f2c (2 commits) (flutter/engine#7349) (#25978)