Dart lints added:
* Avoid optional new
* Avoid optional const
* Prefer single quotes
* Prefer default assignment `=`

Build rules and include paths have been updated as necessary. No other functional change.

https://skia.googlesource.com/skia.git
/%2Blog/056944747072..51e15a69ce5b

git log 056944747072199150fbfe7cd220c246b446acf0..51e15a69ce5bef01ff0d0b5ae3d72c1b2ad3f799 --date=short --no-merges --format=%ad %ae %s
2019-05-07 bungeman@google.com Use SkTextEncoding enum instead of macros.
2019-05-07 ethannicholas@google.com fixed SkSL interpreter negate op
2019-05-07 robertphillips@google.com Loosen up checks in DDLSkSurfaceFlush
2019-05-07 herb@google.com Cleaup GrTextStrike and GrStrikeCache
2019-05-07 ethannicholas@google.com fixed SkSL interpreter test
2019-05-07 robertphillips@google.com Add test for DDLs and SkSurface::flush
2019-05-07 bungeman@google.com Mac slight hinting to be normal instead of none.
2019-05-06 chinmaygarde@google.com Allow building Skia with Fuchsia SDK enabled buildroots.

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-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 (robertphillips@google.com), and stop
the roller if necessary.

Build rules and include paths have been updated as necessary. No other functional change.

a8b6e18b62 Resolve x ?? y as LUB(X!, Y) instead of LUB(X, Y).
78e50a5f9b Revert "Implement the type Never"
986c0791dc Build local elements in constructor initializers.
00c6c53ff8 Include 'exists' into unlinked signature.
32f146afe2 Fix tests that are probably opinions how something should be resolved.
d2d8e8a4a5 Prefer hasLibraryDirective over hasPartOfDirective.
c331ce69a3 Update extract implicitly typed instance property tests.
dd6da838f1 [CFE] Avoid cloning bodies of lazy if elements.
3e95afb414 [CFE] Refactor const collection construction into builders.
a83fbc5edb remove unused enable lazyAssignmentOperators flag
ff75c98bf7 Remove two generated files unintentionally included in 100244.
9e90424749 Decouple startup emitter from compiler/backend
3d7405f198 Separate CodegenImpl from JavaScriptBackend
1c1af2808f Introduce Codegen interface to decouple JavaScriptBackend from the codegen phase
f1fcd89c2d [SDK] Fix missing argument in tools/bots/dart_sdk.py
4934f766d7 [vm] protobuf aware treeshaker, Support freezing messages

https://skia.googlesource.com/skia.git
/%2Blog/9f0eeac8204f..056944747072

git log 9f0eeac8204fa0196573b86de8821f566233a94f..056944747072199150fbfe7cd220c246b446acf0 --date=short --no-merges --format=%ad %ae %s
2019-05-03 halcanary@google.com experimental/editor: progress
2019-05-07 ethannicholas@google.com more SkSL interpreter performance work
2019-05-07 bungeman@google.com Fix some documentation for SkFont.
2019-05-07 brianosman@google.com Add no-nonportable-include-path when building ANGLE with Windows-Clang

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-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 (robertphillips@google.com), and stop
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https://skia.googlesource.com/skia.git
/%2Blog/b0d8b76c4f62..9f0eeac8204f

git log b0d8b76c4f626059b4f3503f57d08e2b3cc09f73..9f0eeac8204fa0196573b86de8821f566233a94f --date=short --no-merges --format=%ad %ae %s
2019-05-07 borenet@google.com [infra] Remove remaining references to go_deps
2019-05-07 brianosman@google.com Viewer: Fixes for shader editing in ANGLE
2019-05-06 bungeman@google.com IWYU for tests A-D.
2019-05-07 raul@tambre.ee Fix use of 'is' operator for comparison

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

Documentation for the AutoRoller is here:
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If the roll is causing failures, please contact the current sheriff (robertphillips@google.com), and stop
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https://skia.googlesource.com/skia.git
/%2Blog/d05c5eec42e9..b0d8b76c4f62

git log d05c5eec42e9ca892f92d221b0d677784fe801b6..b0d8b76c4f626059b4f3503f57d08e2b3cc09f73 --date=short --no-merges --format=%ad %ae %s
2019-05-06 bsalomon@google.com Make finish flush procs work with GL.

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/%2Blog/d699a66fa220..d05c5eec42e9

git log d699a66fa2203c0c4f18f77871c6caa6ab14bd15..d05c5eec42e9ca892f92d221b0d677784fe801b6 --date=short --no-merges --format=%ad %ae %s
2019-05-07 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 6f0c5b8dd5f2..0f4d72e63b92 (8 commits)
2019-05-07 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src e300e8fa69a2..648a59893e4e (393 commits)

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If the roll is causing failures, please contact the current sheriff (robertphillips@google.com), and stop
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https://skia.googlesource.com/skia.git
/%2Blog/5f2807b71e71..d699a66fa220

git log 5f2807b71e71a92bd7df1ed3527f0be8208a4c96..d699a66fa2203c0c4f18f77871c6caa6ab14bd15 --date=short --no-merges --format=%ad %ae %s
2019-05-07 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader bb12b0e41a09..b01f2559e017 (10 commits)

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3173e594ba Skip not classes in mixin superclass constraints.
aa64d1d2e6 Allow building Dart with Fuchsia SDK enabled buildroots.
704fe5e663 [build] Newer versions of Mac have a predefined _FORTIFY_SOURCE that creates a conflict trying to set it with a compiler argument.
149d62bd80 [dartdevc] Adding support for labels in switch statements
b27436158a Get GenericFunctionType element from the node, not the type.
259ab698ab Fix for CompilationUnitElementImpl.nameOffset and type alias code range.
04db35c3b5 Prevent infinite recursion via not 'self'.
078338bb1d Create a data structure to track the graph of nullability nodes.
9ac7bd7855 Ensure we have a scope for variables when visiting fields

821c75c584 Update a test comment
7928dbd270 [analyzer] Resolve nullability of generic function types

Rolled to 3962938f1.

This does not actually import the runners into the engine. It only sets up the targets so they need no modifications are necessary when the migration is done. The engine has been verified to build in both buildroots.

36c315eacc [analyzer] resolve x?.y to return T?
a53c12d07a [vm] Use std::unique_ptr with Message
457e58c637 Type promotion requires current function body.
79f4ecf191 report error on const method with empty body
6aab33ff09 Fix for setter names in library local declarations.
271c8465f4 Rewrite AST when resolving constants.
dd185a029e Build local elements for metadata.
0e4370d75f Fix exception when libraries cannot be resolved (issue 36863)
51730db51b Add flutter track widget creation transform to bazel kernel worker
8d1ed856d2 Always create DeclarationsTracker in AnalysisServer.
f6ba1abab1 Additional MOVE_FILE bazel tests that cannot yet be run due to the expectations around analysis roots and the refactoring test framework.
c3285a77d6 [vm/bytecode/compiler] Make sure the first successor in branches corresponds to fallthrough
4655f63670 update analyzer.Scanner to track featureSet
e1d6decd7b [vm/bytecode/compiler] Mark _simpleInstanceOf calls with Token::kIS
65cea6b8bb Add more information to manifest warning message
209e135db6 Split out two codes from STRICT_RAW_TYPE
ab5b285f82 Record InvocationExpression.typeArgumentTypes and use it directly, without need to restore type arguments.

https://skia.googlesource.com/skia.git
/%2Blog/77af4ecd3546..5f2807b71e71

git log 77af4ecd3546e38e8b6ca6e0efbc6b9df65dc83a..5f2807b71e71a92bd7df1ed3527f0be8208a4c96 --date=short --no-merges --format=%ad %ae %s
2019-05-06 halcanary@google.com Clean up CanvasTest.cpp some more
2019-05-06 bungeman@google.com Clean up CanvasTest.cpp macros.
2019-05-06 brianosman@google.com Revert "Support GL_EXT_draw_buffers"

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

Documentation for the AutoRoller is here:
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Adds methods to get and set the window size, as well as to query the
window's scale factor. This is useful both for custom clients, and for
building a window resize plugin to prototype what will eventually likely
be a system channel.

Plugins may need to be able to access functions affecting the GLFW
window (e.g., a plugin to resize the window). This restructures the API
to create a distinction at both the C and C++ level between the window
controller, which provides access to high-level behaviors driving the
Flutter application, and the window, which provides access to functions
to affect the UI state of the window (i.e., wrapped GLFWwindow
functions).

Also provides a PluginRegistrar extension for plugins that need access
to GLFW-specific functionality.

https://skia.googlesource.com/skia.git
/%2Blog/7d2ad0fdef01..77af4ecd3546

git log 7d2ad0fdef01f3fdfadd11c3082b002688b0cab0..77af4ecd3546e38e8b6ca6e0efbc6b9df65dc83a --date=short --no-merges --format=%ad %ae %s
2019-05-06 brianosman@google.com Support GL_EXT_draw_buffers
2019-05-06 robertphillips@google.com Re-add flag to force opList splitting reduction
2019-05-06 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-06 borenet@google.com [infra] Pin infra code using Go modules
2019-05-06 robertphillips@google.com Make SkComposeImageFilter comply with SkImageFilter::filterBounds calling convention
2019-05-06 thomasanderson@chromium.org Remove static initializer in SkExecutor.cpp
2019-05-06 kjlubick@google.com [canvaskit] 0.6.0
2019-05-06 kjlubick@google.com [img-decode] Start on proposed new spec
2019-05-03 brianosman@google.com Add ShaderErrorHandler to GrContextOptions

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

Documentation for the AutoRoller is here:
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If the roll is causing failures, please contact the current sheriff (robertphillips@google.com), and stop
the roller if necessary.

cdabea8fe2 [dart:io] Document raw sockets are not operating system raw sockets.
09b31ed7cd Clean up some non-driver code in constant evaluation
b4814384ff [vm/compiler] Add optional opcode arg to ILMatcher::TryMatch.
19c228115a [SDK] Adds smoke test for dartaot.

125c5cbf4a [vm/compiler] Instroduce SIMARM_X64 build architecture.
9486e99114 [vm/compiler] Forward typed data view constructor arguments.
28faf8c7ca Merge GraphBuilder into KernelSsaGraphBuilder
5b569a62d2 Remove code for supporting for generating code with compile time error
ba3dba3a00 Remove JavaScriptConstantTask and JavaScriptConstantCompiler
7ea75ab0e0 Const fields doesn't introduce setters; look for setter

https://skia.googlesource.com/skia.git
/%2Blog/2f3637bf2ed4..7d2ad0fdef01

git log 2f3637bf2ed44ef75966786ab4c2974d17c9f649..7d2ad0fdef01f3fdfadd11c3082b002688b0cab0 --date=short --no-merges --format=%ad %ae %s
2019-05-03 michaelludwig@google.com Fix local matrix for crop rects in backdrop image filters

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

Documentation for the AutoRoller is here:
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https://skia.googlesource.com/skia.git
/%2Blog/719a69ca5a6d..2f3637bf2ed4

git log 719a69ca5a6da670d6b87ff7d296cc34d1f7bdd5..2f3637bf2ed44ef75966786ab4c2974d17c9f649 --date=short --no-merges --format=%ad %ae %s
2019-05-06 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 ddc4d33a259a..6f0c5b8dd5f2 (15 commits)
2019-05-06 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src b81b70981d9b..e300e8fa69a2 (429 commits)

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

Documentation for the AutoRoller is here:
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67df3ff878 Remove old commented out code.
7ec4621108 cleanup scanner configuration flags
81ced1c9bf Make a separate file for tests of implicit_this_reference_in_initializer

e5575ba64a In summary2/ast_resolver, get featureSet from enclosing unit
4679e6bf03 fix analyzer/ddc triple shift assignment
86d47dc5b4 Fixing some tests that are failing in all/most backends.
836ace6fcb [vm/bytecode] Avoid recalcualting class hierarchy for each dilp file
1ef3818f79 [ VM / Service ] Added resolved_url field to frames in _CpuProfileTimeline response

e0e5c85f48 [dartdevc] Always print errors when running ddb script
8bc1b2b41c [dart/fuzzer] Restrict libFuzzer to linux
f06c42d2b6 [vm,debugger] remove column number check in GetBreakpointLocation
0707abbaf0 [vm] Remove unnecessary indirection in AlternativeGenerationList
bdc91968a2 [ VM / Service ] Updated JSONWriter::PrintValue(double) to use double_conversion instead of Printf.
58ef1db2ba Enable the MOVE_FILE refactoring in the Analysis Server edit_domain.dart
3f90f04a74 Prepare to publish analyzer 0.36.3
3020127fc4 Change resynthesis test expectations to use new Function syntax.

https://skia.googlesource.com/skia.git
/%2Blog/3fd1841161d1..719a69ca5a6d

git log 3fd1841161d17c99a916da6fc0a2f8e5f06b962d..719a69ca5a6da670d6b87ff7d296cc34d1f7bdd5 --date=short --no-merges --format=%ad %ae %s
2019-05-06 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 10f7befc49a7..bb12b0e41a09 (14 commits)

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https://skia.googlesource.com/skia.git
/%2Blog/ac55784e3363..3fd1841161d1

git log ac55784e33638f02b108aa0b0809040acd3cb7bc..3fd1841161d17c99a916da6fc0a2f8e5f06b962d --date=short --no-merges --format=%ad %ae %s
2019-05-05 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update SKP version

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/%2Blog/feae867f8425..ac55784e3363

git log feae867f8425e7fb5e819257919845f13f164711..ac55784e33638f02b108aa0b0809040acd3cb7bc --date=short --no-merges --format=%ad %ae %s
2019-05-03 halcanary@google.com Tests: re-sort gni, file name convention

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/%2Blog/8ac78aa6df3f..feae867f8425

git log 8ac78aa6df3f5c36794213491295f07f38c9f131..feae867f8425e7fb5e819257919845f13f164711 --date=short --no-merges --format=%ad %ae %s
2019-05-03 benjaminwagner@google.com Add harfbuzz to tools/install_dependencies.sh

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https://skia.googlesource.com/skia.git
/%2Blog/70aab823547a..8ac78aa6df3f

git log 70aab823547a75a0d5eb0616f79a50691047d82c..8ac78aa6df3f5c36794213491295f07f38c9f131 --date=short --no-merges --format=%ad %ae %s
2019-05-03 benjaminwagner@google.com Update the list of Skia dependencies
2019-05-03 fmalita@chromium.org Fix .bzl skottie_lib_hdrs
2019-05-03 benjaminwagner@google.com Fixes for experimental/go-skia
2019-05-03 halcanary@google.com docs/examples/Colors
2019-05-03 fmalita@chromium.org Add explicit .bzl sources and headers lists for skottie/sksg

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