* Move Path and PathMetrics into their own files. No delta
* update file list in licenses_flutter

* Take devicePixelRatio into account when drawing shadows

This fixes a bug where shadows were offset in CanvasKit

* Respond to review comments

* Implement ImageFilter.blur and BackdropFilter

* update licenses file

* Respond to review comments

This reverts commit 2dcfaaeb.

* Add Helvetica and sans-serif as fallback font families

This prevents us from using an ugly serif default font when the
requested font isn't available.

* Use Arial when not on iOS

https://skia.googlesource.com/skia.git/+log/0fd4f01b9b83..3de645cbca78

git log 0fd4f01b9b83..3de645cbca78 --date=short --no-merges --format='%ad %ae %s'
2019-11-11 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader d9ed1c2732ba..31edef751a8d (3 commits)

Created with:
  gclient setdep -r src/third_party/skia@3de645cbca78

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TBR=halcanary@google.com

This exposes the line boundary information a line by adding getLineBoundary to return the indices corresponding to a line around a TextPosition. The information is already calculated when calculating line metrics, so that we can enable moving the selection/cursor to the beginning/end of a line in a text field.

Fixes https://github.com/flutter/flutter/issues/31355

dart-lang/sdk@7408ed4730 Added null-check selector to syntax of cascades, and test.
dart-lang/sdk@6f70d7f5a3 Revert "[vm] Remove obsolete kernel constant expression evaluator."
dart-lang/sdk@96822518f9 [frontend_server] Add reproduction test of incremental serializer bug
dart-lang/sdk@64b0bfac68 [infra] Update CHANGELOG.md for 2.6.1
dart-lang/sdk@4a661e19e2 [cfe] Remove type_promotion_look_ahead_listener.dart
dart-lang/sdk@12c92332f8 [CFE] Parser test can run scanner in non-nnbd-mode
dart-lang/sdk@684c456ffc [cfe] Remove reify runtime
dart-lang/sdk@e8de03915b [vm] Remove obsolete kernel constant expression evaluator.
dart-lang/sdk@0e9eadcb71 Upgrade pub revision
dart-lang/sdk@48f0b83ff2 [CFE] Allow ! in cascade
dart-lang/sdk@cf2a474438 [CFE] Fix incremental serialization bug caused by missing parameter passing
dart-lang/sdk@a7a54afbaa [cfe] Support failure log printing in unit_test_suites
dart-lang/sdk@bbdb7860f6 [build]: Build on Arch Linux with python 2.7-3.8
dart-lang/sdk@64e65a7dab [dart2js] new-rti: Use local in setting up type$
dart-lang/sdk@8f1be54906 [dart2js] New RTI: Improve normalization of is-tests.
dart-lang/sdk@1b344fc77e [dartfuzz] Add fuzzer support for extension methods for classes
dart-lang/sdk@ed956daa3f Update the DDC dart:async patch file version to match the migrated lib.
dart-lang/sdk@be2866b9b1 [analyzer] update lib/crash_reporting.dart
dart-lang/sdk@8ca18f1a14 Extension method prefixed import tests.
dart-lang/sdk@750a83b896 [dartdevc] Fix crash when source files contain non-UTF8 characters

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Roll fuchsia/sdk/core/mac-amd64 from 4JJNo... to RrTFI...

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Roll fuchsia/sdk/core/mac-amd64 from xC_an... to 4JJNo...

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Roll fuchsia/sdk/core/mac-amd64 from eq_Rz... to xC_an...

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https://skia.googlesource.com/skia.git/+log/4135cf0b57c2..0fd4f01b9b83

git log 4135cf0b57c2..0fd4f01b9b83 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).

Created with:
  gclient setdep -r src/third_party/skia@0fd4f01b9b83

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TBR=ethannicholas@google.com

This reverts commit 6c763bb5.

The reverted code was not the root cause of the issues with rolling
flutter into fuchsia, so adding it back.

In addition, lowering the severity of the connection error at the outset
to WARNING; since it is not a hard failure.

This is a duplicate of flutter/engine#13360 with the test switched to use the software backend instead of the GL backend.

After some debugging and testing on another GL embedder I think the issue with the test is some bug having to do with the GL implementation in the test harness specifically. 

Fixes flutter/flutter#38903

It is deprecated and will go away.

Converting the argument to Paragraph.wordBoundary to dynamic temporarily until the framework code is converted to send a TextPosition instead of an int.

I'll submit this, then update the framework side to send a TextPosition, and expect a TextRange
or a List<int>, and then submit that, then I'll change this code to send a TextRange and take a TextPostion only, removing the dynamic here. Once that's done, I'll remove the code in the framework that expects a TextRange or a List<int>, and have it just expect a TextRange.

This is so that we can change the API without breaking the builds.

Landing on red to kick the engine builds.

Roll fuchsia/sdk/core/mac-amd64 from KRali... to eq_Rz...

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https://skia.googlesource.com/skia.git/+log/c88d1774ed50..4135cf0b57c2

git log c88d1774ed50..4135cf0b57c2 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 mtklein@google.com use round() instead of trunc() to f32->unorm
2019-11-08 jlavrova@google.com Yet another build fix
2019-11-08 mtklein@google.com rename to_i32 -> trunc, and add round
2019-11-08 mtklein@google.com avoid redundant clamps
2019-11-08 mtklein@google.com don't clamp alpha, it's already [0,1]
2019-11-08 mtklein@google.com native f32 min/max
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-08 mtklein@google.com convert SkVMBlitter over to floats
2019-11-08 csmartdalton@google.com Always attach stencil buffers with exact sample count matches
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-08 jlavrova@google.com Fixing no icu situation
2019-11-08 reed@google.com add flatten test to SkFont
2019-11-08 csmartdalton@google.com Defer stencil attachment until opsTask execution

Created with:
  gclient setdep -r src/third_party/skia@4135cf0b57c2

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Manual Dart roll fa4379946109467c8a48f20f19d83d7c72968a3e...d45c3d15cb3cea0104a87697c085259666eec528 (#13761)

dart-lang/sdk@d45c3d15cb [VM/nnbd] Make Nullability and NNBDMode class enums to avoid name conflicts.
dart-lang/sdk@cfec969eff Update dartdoc version to 0.29.1.
dart-lang/sdk@e3e0ef8548 Make explanations for unchanged types optional and disabled by default
dart-lang/sdk@e39b0f8d99 Disallow a deferred import of a library with extensions if any extensions are visible
dart-lang/sdk@9c983d2ee3 [cfe] Support extensions via prefix
dart-lang/sdk@5f5ce5d119 Include type parameter bounds into string expections for subtyping.
dart-lang/sdk@dc69edcdb3 NullabilityEliminator for removing nullabilities in legacy libraries.
dart-lang/sdk@7ad7e6202d Allow extensions imported with a prefix to be accessible
dart-lang/sdk@ea57b1e62c [VM/nnbd] Pass nullability when creating Class::DeclarationType.

* Implement Path.computeMetrics in the CanvasKit backend

* Add license for path_metrics.dart

Fixes https://github.com/flutter/flutter/issues/41086

Manual roll of Dart e68ca9b652acdb642668a6acb5f630d5be6c03da...fa4379946109467c8a48f20f19d83d7c72968a3e (#13756)

dart-lang/sdk@fa43799461 [vm/bytecode] Check number of type arguments in non-generic closures
dart-lang/sdk@a01c3b464e Use TypeParameterElement(s) as free variables in FunctionType.toString().
dart-lang/sdk@9c4c49d9ee [vm/benchmarks] Reduce number of isolate spawn runs from 5 to 3.
dart-lang/sdk@e3aac9e25d Check more in LegacyTypeAsserter.
dart-lang/sdk@0957c13054 Check for null before dereferencing constraint text.
dart-lang/sdk@fd9f79c25d [cfe] Handle deferred explicit extension access
dart-lang/sdk@7c78ab75a5 Migration: allow already-migrated libraries to be opted in.
dart-lang/sdk@6317779f9b Simplify TestTypeProvider constructor.
dart-lang/sdk@7e8e66016a Migration: do not use `always` or `never` in already-migrated types.
dart-lang/sdk@e4a60912a7 [cfe] Use library's NNBD opt-in status while serializing supertypes
dart-lang/sdk@ee2efe8e58 [CFE] Add more incremental compiler tests, prepare for better invalidation strategy
dart-lang/sdk@5eaccc20ba [CFE] Incremental test suite now has expect files
dart-lang/sdk@ec0d042955 [infra] Support multiple named configurations in test infrastructure
dart-lang/sdk@b334ea8320 [dart2js] new-rti: experiment - fault in '$is' test
dart-lang/sdk@7a45228584 Use ElementsTypesMixin in TypeSystem tests.
dart-lang/sdk@ec519c3d16 [vm/aot] Disable bytecode in AOT compilation pipeline
dart-lang/sdk@f4780a6450 [vm] Late modifier for non-static final fields.
dart-lang/sdk@23770fcc6c [vm, gc] Increase HeapPage size to 512k; increase max heap size to 32GB.

This reverts commit 618e6666.

* Add draw image test
* Optimize drawImageScaled
* optimize cloning in HtmlImage, implement drawImageRect using image tag

This removes TextRange from the framework and moves it to the engine, in preparation for using it to return text ranges from the text extent APIs, like Paragraph.getWordBoundary instead of a List<int>.

Also added new tests for TextRange.

https://skia.googlesource.com/skia.git/+log/8c1e265f6f81..c88d1774ed50

git log 8c1e265f6f81..c88d1774ed50 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-08 mtklein@google.com add SkColorTypeIsNormalized()
2019-11-08 jlavrova@google.com Font resolution: all unit tests working
2019-11-08 kjlubick@google.com [canvaskit] Expand SkAnimatedImage
2019-11-08 kjlubick@google.com [canvaskit] Fix null dereference when GrContext cannot be made
2019-11-08 egdaniel@google.com Handle failure to create VkRenderPasses in vulkan backend.
2019-11-08 mtklein@google.com Pre-flight SkTLS_pthread changes for C++17

Created with:
  gclient setdep -r src/third_party/skia@c88d1774ed50

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TBR=ethannicholas@google.com

Revert "Always use `IOSGLContextSwitch` to access EAGLContexts to prevent plugins from polluting Flutter's EAGLContext (#13314)" (#13753)

Always use `IOSGLContextSwitch` to access EAGLContexts to prevent plugins from polluting Flutter's EAGLContext (#13314)

https://skia.googlesource.com/skia.git/+log/99b558b594a1..8c1e265f6f81

git log 99b558b594a1..8c1e265f6f81 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 mtklein@google.com remove redundant comparison ops

Created with:
  gclient setdep -r src/third_party/skia@8c1e265f6f81

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Roll fuchsia/sdk/core/mac-amd64 from H_5HL... to KRali...

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https://skia.googlesource.com/skia.git/+log/3fd426d19df3..99b558b594a1

git log 3fd426d19df3..99b558b594a1 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 cc0919dcb64b..652dbfc63e70 (7 commits)

Created with:
  gclient setdep -r src/third_party/skia@99b558b594a1

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https://skia.googlesource.com/skia.git/+log/76eaab6b8cef..3fd426d19df3

git log 76eaab6b8cef..3fd426d19df3 --date=short --no-merges --format='%ad %ae %s'
2019-11-08 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 27a3d31d7a9d..d9ed1c2732ba (1 commits)

Created with:
  gclient setdep -r src/third_party/skia@3fd426d19df3

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TBR=ethannicholas@google.com

The earlier assumption was that the render target would be re-materialized per frame. The render target needs its own picture recorder to be create per frame as well. When render targets are cached in the registry, an existing target will be reused. But submitting the previous frame would have discarded the recorder already. The layer tree paint would then attempt to dererence a null canvas causing a crash at runtime.

Added tests to ensure that this does not happen both with and without a custom compositor specified by the embedder. I am going to rework this code so that the external view embedders thinks of render target access on a per frame basis but that is a larger change. This smaller patchset should unblock broken builds.

Fixes b/144093523

https://skia.googlesource.com/skia.git/+log/345a2735e2c8..76eaab6b8cef

git log 345a2735e2c8..76eaab6b8cef --date=short --no-merges --format='%ad %ae %s'
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-08 csmartdalton@google.com Implement multisample "disable" in Vulkan
2019-11-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-07 mtklein@google.com Reland "hook up float comparisons to x86 JIT"
2019-11-07 herb@google.com Remove unused methods from SkStrike
2019-11-07 mtklein@google.com avoid the JIT on MSAN builds
2019-11-07 halcanary@google.com SkPDF/docs: note that Sfntly subsetter is deprecated
2019-11-07 herb@google.com One glyph() to rule them all!!!
2019-11-07 reed@google.com flesh out blendmodes through Screen
2019-11-07 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-07 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-11-07 robertphillips@google.com Use GrProgramInfo's primitiveType field
2019-11-07 mtklein@google.com Revert "hook up float comparisons to x86 JIT"
2019-11-07 egdaniel@google.com Add handling of failed framebuffer creation in vulkan.
2019-11-07 mtklein@google.com hook up float comparisons to x86 JIT
2019-11-07 mtklein@google.com gn format BUILD.gn
2019-11-07 robertphillips@google.com Add GrPrimitiveType to GrProgramInfo
2019-11-07 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 1d09b983031b..cc0919dcb64b (8 commits)

Created with:
  gclient setdep -r src/third_party/skia@76eaab6b8cef

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TBR=ethannicholas@google.com