Extract the WindowInsetsAnimation.Callback subclass into a separate class that will be lazily loaded (#21548)

WindowInsetsAnimation.Callback was introduced in API level 30.  This
PR moves the text input plugin's WindowInsetsAnimation.Callback subclass
into a class that will only be loaded if the embedding has checked for a
sufficient API level.

See https://github.com/flutter/flutter/issues/66908

https://skia.googlesource.com/skia.git/+log/a87c5076a876..36366209d412

2020-10-02 egdaniel@google.com Require stencil bits on wrapped GrBackendRenderTargets to 0, 8, or 16.
2020-10-02 hcm@google.com Update release notes for M87 branch cut, M88 begin
2020-10-02 kjlubick@google.com [canvaskit] Fix computeTightBounds
2020-10-02 egdaniel@google.com Remove unsized gl stencil support.
2020-10-02 robertphillips@google.com Accumulated non-substantive changes
2020-10-02 brianosman@google.com Revert "Convert sksl_frag.sksl to an IRIntrinsicMap"
2020-10-02 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from 085332bfbb3a to 1693b2839ab9 (532 revisions)
2020-10-02 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 5e947adaf26e to 375fee944c76 (2 revisions)
2020-10-02 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from b09f16ee7aeb to 1fd3e5d89a8f (8 revisions)
2020-10-02 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from da5828c06b4c to 16ebcf601d7f (1 revision)
2020-10-02 herb@google.com remove SkMakeSpan use ctor parameter deduction
2020-10-01 brianosman@google.com Convert sksl_frag.sksl to an IRIntrinsicMap
2020-10-01 hcm@google.com Update Skia milestone to 88
2020-10-01 brianosman@google.com Support variables in the intrinsic map, clone them into Programs
2020-10-01 johnstiles@google.com Replace set of entrances with boolean.
2020-10-01 johnstiles@google.com Convert Analysis::NodeCount to NodeCountExceeds.
2020-10-01 fmalita@chromium.org [sksg] Fix uninitialized DashEffect attribute
2020-10-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from fa082bb58ba7 to b09f16ee7aeb (16 revisions)
2020-10-01 egdaniel@google.com Fix vulkan input usage flag for VulkanWindowContext.
2020-10-01 michaelludwig@google.com Remove unused field from DeviceCM
2020-10-01 bsalomon@google.com GrRenderTargetContext takes release proc helper.
2020-10-01 brianosman@google.com Remove unused variable from IR generator
2020-10-01 egdaniel@google.com Move bytesPerPixel query off of GrCaps and add bytesPerBlock query.
2020-10-01 brianosman@google.com Revert "moved SkSL FloatLiteral data into IRNode"
2020-10-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from b042f4e70879 to 5e947adaf26e (4 revisions)
2020-10-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from cc47e0cdb922 to 085332bfbb3a (612 revisions)
2020-10-01 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from ad421a248adb to da5828c06b4c (2 revisions)
2020-09-30 bsalomon@google.com Get GrBackendRenderTarget's sample count from MtlTexture.
2020-09-30 robertphillips@google.com Have the GrShadowRRectOp make use of the thread-safe view cache
2020-09-30 robertphillips@google.com Have GrMatrixConvolutionEffect use the thread-safe view cache
2020-09-30 johnstiles@google.com Update TextureEffect to avoid extraneous out variable.
2020-09-30 brianosman@google.com Add Variable::fBuiltin, to track Variables owned by pre-includes
2020-09-30 bsalomon@google.com Return GrBackendTexture from SkPromiseImageTexture by value.
2020-09-30 johnstiles@google.com Update MatrixEffect to avoid extraneous out variable.
2020-09-30 ethannicholas@google.com moved SkSL ExternalFunctionCall's data into IRNode
2020-09-30 johnstiles@google.com Simplify generated GLSL code for trivial FPs.
2020-09-30 senorblanco@chromium.org Dawn: remove persistent TextureView from GrDawnTexture.
2020-09-30 smoreland@google.com Avoid heap initialization for skia allocations.
2020-09-30 brianosman@google.com Move VariableReference ref-adjusting into helper functions
2020-09-30 robertphillips@google.com Make GrRectBlurEffect use the thread-safe view cache
2020-09-30 johnstiles@google.com Calculate texture clamping X/Y coordinates in parallel.
2020-09-30 johnstiles@google.com Inline trivial single-argument constructors directly.
2020-09-30 michaelludwig@google.com Fix GrClipStackClip::preApply to report kClippedOut
2020-09-30 robertphillips@google.com Make GrRRectBlurEffect use the thread-safe uniquely-keyed view cache (take 2)
2020-09-30 johnstiles@google.com Add ProgramWriter, a non-const version of ProgramVisitor.
2020-09-30 johnstiles@google.com Add unit test for inlining trivial arguments.
2020-09-30 ethannicholas@google.com moved SkSL Extension data into IRNode
2020-09-30 csmartdalton@google.com Don't cast emscripten pointers when assembling WebGL interface
2020-09-30 johnstiles@google.com Update nanobench SkSL tests.
2020-09-30 ethannicholas@google.com Revert "Revert "moved SkSL ExpressionStatement's data into IRNode""
2020-09-30 bsalomon@google.com Add sample count field to GrD3DTextureResourceInfo.
2020-09-30 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from ec42b1438fd2 to fa082bb58ba7 (11 revisions)
2020-09-30 johnstiles@google.com Avoid creating temporary variables for nested trivial cases.
2020-09-30 johnstiles@google.com Revert "moved SkSL ExpressionStatement's data into IRNode"
2020-09-30 brianosman@google.com Revert "Make GrRRectBlurEffect use the thread-safe uniquely-keyed view cache"

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC brianosman@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

* cloning flutter repo for luci recipes

* rename the file, script does not clone the repo, but reset it to the right commit

* adding the version logging

When Flutter engine connects to Scenic, Scenic has already
checked the display and graphics device availability before
Scenic starts; so it is guaranteed that display devices are
available and surface is valid when it is created.

Thus this change removes the device watching details from
flutter surface on Fuchsia so that it doesn't need to do
duplicated checks and hides the device-specific details.

This reverts commit f01936c6.

The Windows and GLFW embeddings both had cases of missing returns after
calling `Error` on a method channel result object, leading to incorrect
double-calls on the result if the error paths were ever hit.

* re-enable CanvasKit path ops test

* also test Path.combine

Revert "Use dispatchKeyEventPreIme, and handle keys sent to InputConnection.sendKeyEvent on Android (#21163)" (#21513)

This reverts commit 539034ae.

Use dispatchKeyEventPreIme, and handle keys sent to InputConnection.sendKeyEvent on Android (#21163)

This switches from using dispatchKeyEvent to using dispatchKeyEventPreIme so that keys can be intercepted before they reach the IME and be handled by the framework.

It also now intercepts key events sent to InputConnection.sendKeyEvent, as some IMEs do (e.g. the Hacker's Keyboard), and sends the to Flutter before sending them to the IME (which it now only does if they are not handled by the framework).

This fixes the problem where pressing TAB on a hardware keyboard sends the tab to both the text field and to the focus traversal system.

Note that we still can't intercept all keystrokes given to a soft keyboard, only those which the soft keyboard decides to send to InputConnection.sendKeyEvent.