update dependencies; add a Web smoke test

git@github.com:flutter/engine.git/compare/dd735c917929...ff49ca1c6e5b

git log dd735c917929..ff49ca1c6e5b --no-merges --oneline
2019-08-09 dnfield@google.com Make firebase test more LUCI friendly (flutter/engine#10783)
2019-08-09 chinmaygarde@gmail.com Add a test for creating images from bytes. (flutter/engine#10799)
2019-08-09 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 1nsfv... to 9xVXx... (flutter/engine#10798)
2019-08-09 chinmaygarde@gmail.com Wire up a concurrent message loop backed SkExecutor for Skia. (flutter/engine#10788)
2019-08-09 stuartmorgan@google.com Roll buildroot for ANGLE support (flutter/engine#10784)
2019-08-09 chinmaygarde@gmail.com When setting up AOT snapshots from symbol references, make buffer sizes optional. (flutter/engine#10674)
2019-08-09 egarciad@google.com Include Maven dependency in files.json (flutter/engine#10719)
2019-08-09 liyuqian@google.com Remove 3 semi-redundant try-jobs (flutter/engine#10786)
2019-08-09 skia-flutter-autoroll@skia.org Roll src/third_party/skia 04580795746b..4d557e3df433 (4 commits) (flutter/engine#10794)
2019-08-09 jason-simmons@users.noreply.github.com Build JARs containing the Android embedding sources and the engine native library (flutter/engine#10778)

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git@github.com:flutter/engine.git/compare/d9bbe37ce376...dd735c917929

git log d9bbe37ce376..dd735c917929 --no-merges --oneline
2019-08-09 iska.kaushik@gmail.com [flutter_runner] Improve frame scheduling (flutter/engine#10780)
2019-08-09 iska.kaushik@gmail.com [flutter] Create the compositor context on the GPU task runner. (flutter/engine#10781)
2019-08-09 chinmaygarde@gmail.com Revert "Forwards iOS dark mode trait to the Flutter framework (#34441). (#9722)" (flutter/engine#10789)
2019-08-08 matthew-carroll@users.noreply.github.com Forwards iOS dark mode trait to the Flutter framework (#34441). (flutter/engine#9722)
2019-08-08 dnfield@google.com Specify which android variant for tests (flutter/engine#10717)
2019-08-08 dnfield@google.com Don't use gradle daemon for building (flutter/engine#10771)

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TimelineEvents may not be sent if there aren't enough to form a group.
Hence we should always use ExtensionEvent as the trigger.

See also https://github.com/flutter/flutter/pull/37503

git@github.com:flutter/engine.git/compare/d784a39ab8ce...d9bbe37ce376

git log d784a39ab8ce..d9bbe37ce376 --no-merges --oneline
2019-08-08 jason-simmons@users.noreply.github.com Remove use of the deprecated AccessibilityNodeInfo boundsInParent API (flutter/engine#10773)
2019-08-08 chinmaygarde@google.com Manually roll Skia to pull in iOS armv7 build failure fix. (flutter/engine#10777)
2019-08-08 jason-simmons@users.noreply.github.com Manual roll of Fuchsia clang/linux-amd64 toolchain (flutter/engine#10774)
2019-08-08 skia-flutter-autoroll@skia.org Roll src/third_party/skia 19e3cd4c9cd5..4acbab33bd40 (6 commits) (flutter/engine#10769)

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This reverts commit b39e315e.

git@github.com:flutter/engine.git/compare/f200ee13aa37...d784a39ab8ce

git log f200ee13aa37..d784a39ab8ce --no-merges --oneline
2019-08-08 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 5c9q-... to 1nsfv... (flutter/engine#10716)
2019-08-08 skia-flutter-autoroll@skia.org Roll src/third_party/skia 241e0ee4a7dc..19e3cd4c9cd5 (1 commits) (flutter/engine#10753)
2019-08-08 skia-flutter-autoroll@skia.org Roll fuchsia/clang/mac-amd64 from CqfCC... to 2aCB4... (flutter/engine#10722)
2019-08-08 skia-flutter-autoroll@skia.org Roll src/third_party/skia 228518f0f828..241e0ee4a7dc (5 commits) (flutter/engine#10720)
2019-08-08 skia-flutter-autoroll@skia.org Roll src/third_party/skia 1dac7bc29f2d..228518f0f828 (1 commits) (flutter/engine#10715)
2019-08-08 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from yqu1p... to 57R6s... (flutter/engine#10713)
2019-08-08 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 8mNHG... to 5c9q-... (flutter/engine#10710)
2019-08-07 liyuqian@google.com Revert "Remove semi-redundant try-jobs. (#10485)" (flutter/engine#10705)

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[web][upstream] Don't register exit/saveCompilationTrace for web platform since they are not available (#37812)

* Don't register N/A services exit/saveCompilationTrace for web platform

This PR fixes an issue where MouseRegion crashes when being passed with closures instead of methods.

It changes how a RenderMouseRegion handles its MouseTrackingAnnotation.

Instead of creating a new annotation every time it becomes active and destroys it when deactivated, it now creates an annotation during the constructor and holds onto it until the end of its lifecycle.
Instead of directly passing the argument callbacks to the annotation, it proxies them using methods.

Fix an issue where MouseRegion will render its children twice.

(Breaking Change) Move some hardcoded pixel values to reusable constants.

git@github.com:flutter/engine.git/compare/797157bdecb5...f200ee13aa37

git log 797157bdecb5..f200ee13aa37 --no-merges --oneline
2019-08-07 skia-flutter-autoroll@skia.org Roll src/third_party/skia b2c5a94b1c7a..1dac7bc29f2d (5 commits) (flutter/engine#10707)
2019-08-07 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from UeWpb... to yqu1p... (flutter/engine#10704)
2019-08-07 dnfield@google.com Test perf overlay gold on Linux (flutter/engine#10703)

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git@github.com:flutter/engine.git/compare/81f695fc954a...797157bdecb5

git log 81f695fc954a..797157bdecb5 --no-merges --oneline
2019-08-07 jason-simmons@users.noreply.github.com Improvements to the flutter GDB script (flutter/engine#10675)
2019-08-07 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 9PJXr... to 8mNHG... (flutter/engine#10701)
2019-08-07 stuartmorgan@google.com Roll swiftshader (flutter/engine#10699)
2019-08-07 skia-flutter-autoroll@skia.org Roll src/third_party/skia 593290ed75fd..b2c5a94b1c7a (9 commits) (flutter/engine#10697)
2019-08-07 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from eXzeO... to UeWpb... (flutter/engine#10695)

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See https://github.com/flutter/flutter/issues/37423

git@github.com:flutter/engine.git/compare/dac86eb7fbf7...81f695fc954a

git log dac86eb7fbf7..81f695fc954a --no-merges --oneline
2019-08-07 bkonyi@google.com Roll src/third_party/dart f3139f57b4..f29f41f1a5 (3 commits) (flutter/engine#10693)
2019-08-07 shihaohong@google.com Roll buildroot forward to unbreak ToT (flutter/engine#10694)
2019-08-07 shihaohong@google.com Rolls engine to Android SDK 29 and its corresponding tools (flutter/engine#10692)
2019-08-07 goderbauer@google.com Fix empty composing range on iOS (flutter/engine#10381)
2019-08-07 skia-flutter-autoroll@skia.org Roll src/third_party/skia ed19e97294f6..593290ed75fd (2 commits) (flutter/engine#10691)

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The use-application-binary flag can be used to run a previously built
app package.