Rather than hard-coding the type of incoming events to mouse, and
synthesizing a primary button press for kDown/kUp, expose device kind
and buttons in the API.

For backwards compatibility, if the type is not set, the old behavior is
used. If an embedder sets the type to mouse explicitly, however, they
must also set correct button information.

For the touch type, the API abstracts away the framework's internal
expectation that a button is set for touch down/move for simplicity.

Fixes flutter/flutter#32854

fde6a5917e [vm, compiler] Unoptimized megamorphic calls.
e20da9c220 Fix order of resolving / writing / reading of function / method declarations.
5218970024 Update README.md
cfdcfe2bfe Update DeclarationsTracker when a context options change.
181685b852 Allow disabling individual server features.
e114fc3453 [release] Prepare changelog and version file for 2.3.1 and 2.3.2-dev.0.0
9b017a1ced [dart/vm] Peephole optimizer (window size one) on stack code
2b6b0e00d9 Fix resolveToBound for nullability

Fixes https://github.com/flutter/flutter/issues/31691

* Roll src/third_party/dart b48c8b1d1c..433bc1b350 (2 commits)

433bc1b350 [vm/compiler] Avoid adding unused Redefinition instructions
04e329b6ed Add override annotations across DDC

* Roll src/third_party/dart 433bc1b350..6d76c8790d (5 commits)

6d76c8790d bump to linter 0.1.89
0799ac0edb Enforce DDC lints
2fd1021326 [dartdevc] Turn on lints and cleanup violations
9adc5be551 Dartfmt all of DDC with the latest
e9b5c9ce8b Ignore todos in DDC

* Remove duplicate flag "track-widget-creation". Unblocks SDK roll.

* Roll src/third_party/dart b11308657c..b11308657c (0 commits)

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/%2Blog/12710911dcc2..e63b01b364a0

git log 12710911dcc2056d8b6697cd0aa540f01a1c47df..e63b01b364a0e86668ff4c4508b725b2e6752c00 --date=short --no-merges --format=%ad %ae %s
2019-05-21 halcanary@google.com SkTypeface_mac/SkPDF codepoints out of BMP
2019-05-21 ethannicholas@google.com SkSL interpreter intrinsics
2019-05-21 herb@google.com Revert "Make SkRemoteGlyphCache obey the prepareForDrawing contract"
2019-05-21 herb@google.com Simplify scale handling
2019-05-21 csmartdalton@google.com ccpr: Visit atlas proxies during visitProxies()
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 herb@google.com Make SkRemoteGlyphCache obey the prepareForDrawing contract
2019-05-21 mtklein@google.com simplify VECTOR macros, negates
2019-05-21 robertphillips@google.com Rename createTestingOnlyBackendTexture to createBackendTexture
2019-05-21 csmartdalton@google.com Blacklist PinnedImageTest on LenovoYogaC630
2019-05-21 mtklein@google.com 16-bit instructions

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git log 54fbe0f813c146afa9c983d8fa358937d00d2fec..12710911dcc2056d8b6697cd0aa540f01a1c47df --date=short --no-merges --format=%ad %ae %s
2019-05-21 mtklein@google.com negateS -> negateI
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (nontrivial).
2019-05-21 mtklein@google.com Revert "Revert "SkSLInterpreter refactoring""
2019-05-20 bungeman@google.com Move SkLeanWindows.h to src.

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/%2Blog/1903c94f44fd..54fbe0f813c1

git log 1903c94f44fd0abce10da49b3a53b2c4e4af428f..54fbe0f813c146afa9c983d8fa358937d00d2fec --date=short --no-merges --format=%ad %ae %s
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-20 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (nontrivial).
2019-05-21 csmartdalton@google.com Revert "SkSLInterpreter refactoring"
2019-05-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 70958d15db70..e8247a574956 (3 commits)
2019-05-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 4dc9df3b70d6..09fbfa7a6919 (351 commits)
2019-05-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 7ab65834bc02..9e2844fa2744 (2 commits)

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/%2Blog/dbc3caaf6c3d..1903c94f44fd

git log dbc3caaf6c3d9e257f078fc273941a7cf148be9d..1903c94f44fd0abce10da49b3a53b2c4e4af428f --date=short --no-merges --format=%ad %ae %s
2019-05-20 reed@google.com use rect-memset in legacy rect blit

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This member variable was added to three classes in #7807, but only
initialized to 0 in one of them. Initialize to 0 in the other two.

It should return void as SceneBuilder::addRetained is returning void.
Thanks yjbanov@ for finding this typo!

b48c8b1d1c [vm] Re-order ICData entries to allow CID and count to be accessed with a load-pair.
959e7df20e Remove 'await null' in build mode.
59381cd8d0 Fix summary2 linking when using API summaries, which don't include line starts.
59bcb38db7 Report the missing library in LinkedElementFactory.
f9402d635a [vm] Get script of closure from owner as parent function may contain wrong script

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git log d93ee53affd3ffaa8e3206d9358b8f9197d118bf..dbc3caaf6c3d9e257f078fc273941a7cf148be9d --date=short --no-merges --format=%ad %ae %s
2019-05-20 reed@google.com rect-memset: memset + stride and height
2019-05-20 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-20 mtklein@google.com SkSLInterpreter refactoring
2019-05-20 ethannicholas@google.com switched over to using fallthrough in SkSL interpreter vector operations
2019-05-20 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (nontrivial).
2019-05-20 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-20 bsalomon@google.com return kSkip in async read GMs when context is abandoned
2019-05-20 iannucci@chromium.org Manual recipe roll
2019-05-20 mtklein@google.com update SkUserConfig.h a bit

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macOS uses negative values to represent scrolls to the right, while
Flutter expects the opposite, so flip X deltas.

Adds the flutter/platform channel to the macOS shell, and implements
SystemNavigator.pop.

Other methods from this channel will be implement in the future.

macOS part of flutter/flutter#30713

- Makes json_method_codec.cc compatible with the last stable RapidJSON release.
- Allows removing the GTK dependency with a compile flag.
- Fixes a missing break in a switch flagged by some toolchains.

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/%2Blog/a8ceb775c12f..d93ee53affd3

git log a8ceb775c12f1516e11dd7463f0576d9fb26d524..d93ee53affd3ffaa8e3206d9358b8f9197d118bf --date=short --no-merges --format=%ad %ae %s
2019-05-20 reed@google.com Rework colorfilter bench
2019-05-20 reed@google.com simplify setColor, without needing the 4f or the colorspace
2019-05-20 bsalomon@google.com Fix async_rescale_and_read_no_bleed with --preAbandonGpuContext
2019-05-20 bsalomon@google.com Reland "Make SkSurface::asyncRescaleAndRead use kStrict constraint"
2019-05-20 robertphillips@google.com Move explicit backend object allocation API to GrContext
2019-05-17 bungeman@chromium.org Move ccpr headers for display list out of include/private.
2019-05-20 reed@google.com remove allocs for colorfilters
2019-05-17 ethannicholas@google.com support for SkSL interpreter external function calls

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82c8c78739 Make StreamTransformer(..) transformed stream mimic original's isBroadcast.
022adc5bc3 Implement using suggestion sets for LSP completions
0f24e4b277 Wire up LSP completion resolution provider + sendWorkspaceEdit command
b6ce27a141 Add LSP tests for suggestion sets (marked failing)
7be23977f1 Minor LSP tweaks in preperation for included suggestionSets
435066d194 [infra] Increase number of shards for debug precomp builder.
09b46aa084 Support in-memory CodegenResult serialization/deserialization
c69d0c6e30 Flatten DynamicUse and StaticUse class hierarchies
6757d0c6d9 Use ModularNamer/ModularEmitter to generate code separate from codegen enqueuing
a9827a0c05 Refactor OneShotInterceptorData to prepare for modular codegen
c0b967d7da Refactor Namer and ConstantEmitter to prepare for modular compilation
670ac1aca8 Prepare js_ast for more advanced use of DeferredExpression
e13b1b6e0c Build summary2 for SDK.
58cf83df4d Don't crash on during indexing references to named parameters of a generic function types.
5e5b03881c Fix for exporting setters.
234103f9d4 Fix for hasImplicitReturnType.
2d8fc016b9 Sort declarations in resynthesize_common.dart

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/%2Blog/f4c66ccafcb7..a8ceb775c12f

git log f4c66ccafcb7fe62201cbe9a6eb72b09ef8a31da..a8ceb775c12f1516e11dd7463f0576d9fb26d524 --date=short --no-merges --format=%ad %ae %s
2019-05-20 mtklein@google.com Revert "remove SkMiniPicture and co."
2019-05-20 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-19 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (nontrivial).

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/%2Blog/6a8c3f07e81a..f4c66ccafcb7

git log 6a8c3f07e81a6647c7de1b6d9b7835435dbfe691..f4c66ccafcb7fe62201cbe9a6eb72b09ef8a31da --date=short --no-merges --format=%ad %ae %s
2019-05-20 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 06de90c66c18..70958d15db70 (8 commits)
2019-05-20 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 5ca9f9560554..4dc9df3b70d6 (533 commits)

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ed169c4bb0 Revert "[vm/ffi] FFI callbacks on X64."
f930d674ca Restore old nullability behavior of TypeParameterElement.type.
ce62987c9d Remove DynamicState and make NumState an abstract class
be209f7846 [vm/ffi] FFI callbacks on X64.

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/%2Blog/ed2255b4ea13..6a8c3f07e81a

git log ed2255b4ea13a4627e3ef3d4f593565463ef6421..6a8c3f07e81a6647c7de1b6d9b7835435dbfe691 --date=short --no-merges --format=%ad %ae %s
2019-05-20 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader ab1e2b49fe88..7ab65834bc02 (24 commits)

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/%2Blog/8c6bfe5350cf..ed2255b4ea13

git log 8c6bfe5350cf5ba0f4979dc5f13872c09e3ca3cc..ed2255b4ea13a4627e3ef3d4f593565463ef6421 --date=short --no-merges --format=%ad %ae %s
2019-05-19 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update SKP version

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/%2Blog/76346ac952c4..8c6bfe5350cf

git log 76346ac952c4006b41bbc8fd5a41c22a8b6e43b1..8c6bfe5350cf5ba0f4979dc5f13872c09e3ca3cc --date=short --no-merges --format=%ad %ae %s
2019-02-05 rmistry@google.com Whitespace test
2019-05-17 reed@google.com Revert "Revert "Experimental SkVideoDecoder, to wrap calls to ffmpeg""

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9e30fbaea4 [vm] Unify function prologue generation across all backends.
9b1c8fca91 More fixes for GenericFunctionType.
cf15dc17e0 With summary2 FunctionTypedFormalParameter has type parameters.
7983fac33b add "extension" built-in keyword for extension methods
475f55d46b Add dart2js modular test suite under a unit test.
1f409716d6 Add packageBase to simplify how we build packages files and how we process package import uris

c6f6713de1 [vm,exception] notify debugger to stop for ReThrow
8d52c0d08e Store library nullability status in LibraryElement; adjust TypeParameterElement.type based on it.
c33f1a079e revise scanner api so that error tokens are always prepended
42334a7f67 Infer when the bound of a type parameter needs to be nullable.

four_gate -> flutter_runner
dt_rush -> dart_runner

Fuchsia is changing zx_clock_get to return a zx_status_t. This change
prepares us for that change.

b1f9f2182d [ VM / Service ] Remove root frame from traceEvents in _getCpuProfileTimeline response

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/%2Blog/0c6daf034b11..76346ac952c4

git log 0c6daf034b11b0924b05abe441ffa892c7bc3c07..76346ac952c4006b41bbc8fd5a41c22a8b6e43b1 --date=short --no-merges --format=%ad %ae %s
2019-05-17 mtklein@google.com Reland "byte align everything in SkSLInterpreter"
2019-05-17 michaelludwig@google.com Revert "Experimental SkVideoDecoder, to wrap calls to ffmpeg"
2019-05-17 mtklein@google.com disassemble on unit test failure
2019-05-17 rmistry@google.com [Recreate SKPs bot] Fix failing web pages
2019-05-17 mtklein@google.com remove stray kNop
2019-05-17 robertphillips@google.com Add testing of mipmaps to backend allocation test
2019-05-17 bsalomon@google.com Revert "Make SkSurface::asyncRescaleAndRead use kStrict constraint"
2019-05-17 jvanverth@google.com Fix matrix layout in Metal.
2019-05-17 mtklein@google.com Revert "byte align everything in SkSLInterpreter"
2019-05-17 reed@google.com Experimental SkVideoDecoder, to wrap calls to ffmpeg
2019-05-17 mtklein@google.com byte align everything in SkSLInterpreter
2019-05-17 michaelludwig@google.com Force snapBackImage() to N32 for image filters
2019-05-17 bsalomon@google.com Make SkSurface::asyncRescaleAndRead use kStrict constraint
2019-05-17 brianosman@google.com Implement postfix ++/--, and use the correct 1 for floats
2019-05-17 mtklein@google.com warmup learning sksl interpreter
2019-05-17 bsalomon@google.com Initial version of rescaling async readback API
2019-05-17 michaelludwig@google.com Refactor complex CTM management for image filters
2019-05-17 jvanverth@google.com Metal: Add check for invalid shader functions
2019-05-17 robertphillips@google.com Switch over to using new direct allocation API in our tests (as much as possible at least)
2019-05-17 egdaniel@google.com Appease compilers after swizzle change.
2019-05-16 robertphillips@google.com Add helper method to fill in yuvaIndices given a yuv format
2019-05-16 egdaniel@google.com Add GrCaps call to get swizzle from BackendFormat and ColorType.
2019-05-16 brianosman@google.com Interpreter: Implement ternary operator
2019-05-16 brianosman@google.com Particles + Interpreter: Bind particle's SkRandom to "rand"
2019-05-16 ethannicholas@google.com redesigned SkSL interpreter vector instructions
2019-05-14 aparchur@google.com Apply layer in-point as a negative time-bias for multi-frame image assets.
2019-05-17 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader d61595f367af..ab1e2b49fe88 (8 commits)
2019-05-16 michaelludwig@google.com Remove rounding on explicit clip geometry
2019-05-17 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 8c742b264faa..5ca9f9560554 (448 commits)
2019-05-17 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 6ddb7768fa25..06de90c66c18 (9 commits)

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New Plugin API PR3: Introduces Service, BroadcastReceiver, and ContentProvider awareness, control surfaces, and plugin bindings. (#8962)

b2a3d1c31b Give Field::is_nullable the same consistency check as guarded_cid
b4611b9357 add extension-methods experimental feature

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/%2Blog/c6568afa0b63..0c6daf034b11

git log c6568afa0b634d47596557960ccf756962b9aab3..0c6daf034b11b0924b05abe441ffa892c7bc3c07 --date=short --no-merges --format=%ad %ae %s
2019-05-16 robertphillips@google.com Direct backend object allocation API

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0e8656e045 [vm, compiler] Shorter invocation counter check.