On macOS, any file that isn't intended to be checked in should be in the
ephemeral directory.

The hack here is to flush the timeline events so the host that
waits for the 'Rasterized first useful frame' event won't hang.
Previously 'Widgets built first useful frame' didn't cause this
trouble because the GPU thread will naturally add more events later
and cause a fresh. The `Rasterized...` event, however, is likely
to be the last (or nearly the last) event during the app start up.

rmacnak and I will figure out a better way to fix it next week.
We're having this quick hack now to fix our device lab performance
tests so we won't miss the data points.

git@github.com:flutter/engine.git/compare/f54c39d564b4...4106d847b098

git log f54c39d564b4..4106d847b098 --no-merges --oneline
2019-08-02 a-siva@users.noreply.github.com Roll src/third_party/dart bd049f5b53...622ec5099f (flutter/engine#10437)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from coHoq... to eAnGy... (flutter/engine#10471)
2019-08-02 skia-flutter-autoroll@skia.org Roll src/third_party/skia fdd03910d6c6..149f3f197897 (11 commits) (flutter/engine#10470)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from L-ih4... to 7LN8t... (flutter/engine#10469)
2019-08-02 iska.kaushik@gmail.com Revert "Remove one last final call to AddPart()" (flutter/engine#10440)

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Fix bug where selection menu appeared at top of screen for multiline inputs.

If xcode_backend.sh script fails or substitute variables are missing, fail the host Xcode build (#37449)

git@github.com:flutter/engine.git/compare/26368225b5ec...f54c39d564b4

git log 26368225b5ec..f54c39d564b4 --no-merges --oneline
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from mlKdh... to coHoq... (flutter/engine#10467)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from FidkF... to L-ih4... (flutter/engine#10466)
2019-08-02 skia-flutter-autoroll@skia.org Roll src/third_party/skia 83d8a949ae22..fdd03910d6c6 (43 commits) (flutter/engine#10465)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from tPxPZ... to mlKdh... (flutter/engine#10464)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from ySA6l... to FidkF... (flutter/engine#10463)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from bswmz... to tPxPZ... (flutter/engine#10462)
2019-08-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from R6MHy... to ySA6l... (flutter/engine#10455)

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* Remove unneeded IconTheme from FAB

* Update constructor APIs TooltipTheme, ToggleButtonsTheme, PopupMenuTheme
The constructor signatures for TooltipTheme, ToggleButtonsTheme, PopupMenuTheme have been incompatibly changed. They now require just one theme data parameter.

The text caret wasn't being hidden after entering text, this fixes it.

* painting and semantics

* more comments

* fixing ci

* review fixes

* add assert for id

* rename custom layer factory to layer builder

* review updates

* partial review fixes

* some doc updates

* more doc updates

* only expose getter for id in PlatformViewController

* doc updates/removing all the  references

* remove extra

* more doc updates

* some doc updates

* more doc fixes

* review fixes

git@github.com:flutter/engine.git/compare/eac7ef065dbd...26368225b5ec

git log eac7ef065dbd..26368225b5ec --no-merges --oneline
2019-08-02 jason-simmons@users.noreply.github.com Fix deprecation warnings in the Android embedding (flutter/engine#10424)

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* Switch iOS gen_snapshot from multi-arch binary to multiple binaries

* Make snapshotterPath mutable

git@github.com:flutter/engine.git/compare/bf9288597586...eac7ef065dbd

git log bf9288597586..eac7ef065dbd --no-merges --oneline
2019-08-01 chris@bracken.jp Add copy_gen_snapshots.py tool (flutter/engine#10430)
2019-08-01 liama@google.com Fix mac gen_snapshot uploader (flutter/engine#10423)
2019-08-01 iska.kaushik@gmail.com Make kernel compiler use host toolchain (flutter/engine#10419)
2019-08-01 liama@google.com Use simarm_x64 when targeting arm (flutter/engine#10010)

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the roller if necessary.

bf9288597 [fuchsia] Add kernel_compiler target in build_fuchsia script (flutter/engine#10403) (#37428)


git@github.com:flutter/engine.git/compare/b41c172bcd86...bf9288597586

git log b41c172bcd86..bf9288597586 --no-merges --oneline
2019-08-01 iska.kaushik@gmail.com [fuchsia] Add kernel_compiler target in build_fuchsia script (flutter/engine#10403)

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reland Enable selection by default for password text field and expose api to turn on and off context menu options (#37324)

* Sync the value kMaxUnsignedSMI for the Web

* update events.dart docs

This reverts commit 58092195.

* Remove multi-arch check in iOS builds

* Manual roll of https://github.com/flutter/engine/pull/10010

- Splits on{Enter,Hover,Exit} from Listener to MouseRegion. Deprecated API is kept for compatibility.
- Splits on{Enter,Hover,Exit} from RenderPointerListener to RenderMouseRegion.

* Improve Windows build failure message

* Undo dartfmt to match source formatting

* Removed prompt to file new issue per PR change request

git@github.com:flutter/engine.git/compare/f790c9ad7e76...b41c172bcd86

git log f790c9ad7e76..b41c172bcd86 --no-merges --oneline
2019-08-01 iska.kaushik@gmail.com [fuchsia] Kernel compiler is now ready (flutter/engine#10309)
2019-08-01 cfontas@google.com Remove one last final call to AddPart() (flutter/engine#10273)

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If the roll is causing failures, please contact the current sheriff (franciscojma@google.com), and stop
the roller if necessary.

f790c9ad7 Roll fuchsia/sdk/core/linux-amd64 from fuchsia/sdk/core/linux-amd64:2k-0epsqEV14oZvIxpS-jHkPhZa837aSNjEj14wd73MC to fuchsia/sdk/core/linux-amd64:R6MHyz58h4cLuv1Odwzf2JWJkrYee4D6QKR92VinTggC (flutter/engine#10305) (#37363)


git@github.com:flutter/engine.git/compare/59ac63d3e112...f790c9ad7e76

git log 59ac63d3e112..f790c9ad7e76 --no-merges --oneline
2019-08-01 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from fuchsia/sdk/core/linux-amd64:2k-0epsqEV14oZvIxpS-jHkPhZa837aSNjEj14wd73MC to fuchsia/sdk/core/linux-amd64:R6MHyz58h4cLuv1Odwzf2JWJkrYee4D6QKR92VinTggC (flutter/engine#10305)

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

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

git@github.com:flutter/engine.git/compare/a29ef660134f...59ac63d3e112

git log a29ef660134f..59ac63d3e112 --no-merges --oneline
2019-07-31 jason-simmons@users.noreply.github.com Ensure that the SingleFrameCodec stays alive until the ImageDecoder invokes its callback (flutter/engine#10297)
2019-07-31 franciscojma@google.com [glfw] Enables replies on binary messenger in glfw embedder (flutter/engine#9948)
2019-07-31 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from fuchsia/sdk/core/mac-amd64:TAkpmqxKgauDvmpeaOTOAbYsnz1nWuqznTirppN0dGoC to fuchsia/sdk/core/mac-amd64:bswmziOk2a7sku7aG0fnZO7sQOFPK_XBy58QPcqsugwC (flutter/engine#10300)
2019-07-31 skia-flutter-autoroll@skia.org Roll src/third_party/skia c876404e64d2..83d8a949ae22 (6 commits) (flutter/engine#10302)
2019-07-31 garyq@google.com Fix run.start -> run_start (flutter/engine#10295)
2019-07-31 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from fuchsia/sdk/core/linux-amd64:E8lhQA7KKqhzZkfqaF8zKnqOMy88-Z3lf4uBnUNHa4AC to fuchsia/sdk/core/linux-amd64:2k-0epsqEV14oZvIxpS-jHkPhZa837aSNjEj14wd73MC (flutter/engine#10301)
2019-07-31 dnfield@google.com Make tree green for real this time, I promise. (flutter/engine#10303)
2019-07-31 dnfield@google.com Fix red build again (flutter/engine#10298)
2019-07-31 bkonyi@google.com Roll src/third_party/dart 80c4954d4d..bd049f5b53 (37 commits) (flutter/engine#10294)
2019-07-31 dnfield@google.com fix CI (flutter/engine#10296)
2019-07-31 iska.kaushik@gmail.com [fuchsia] Make cirrus build fuchsia artifacts (flutter/engine#10268)
2019-07-31 dnfield@google.com Add fuchsia.stamp for roller (flutter/engine#10293)
2019-07-31 franciscojma@google.com  [macos] Reland function refactor (flutter/engine#10189)
2019-07-31 sjindel@google.com Export FFI from sky_engine. (flutter/engine#10282)
2019-07-31 skia-flutter-autoroll@skia.org Roll src/third_party/skia 6808e2d1faac..c876404e64d2 (6 commits) (flutter/engine#10292)
2019-07-31 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from fuchsia/sdk/core/mac-amd64:A4Ah4g0K30dWnbolQ7Z3zyXapbAyy3d9l4IeLGAG9YQC to fuchsia/sdk/core/mac-amd64:TAkpmqxKgauDvmpeaOTOAbYsnz1nWuqznTirppN0dGoC (flutter/engine#10291)
2019-07-31 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from fuchsia/sdk/core/linux-amd64:6j9WXOOtqKZzSKIgQi-12GJ1MYzPDJvq-RLAtpJpGB0C to fuchsia/sdk/core/linux-amd64:E8lhQA7KKqhzZkfqaF8zKnqOMy88-Z3lf4uBnUNHa4AC (flutter/engine#10290)

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

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Build number (part after +) is documented as optional, use entire app version if not present (#37036)