* Implement HtmlView, the platform view widget for Flutter Web

* Document HtmlView constructor

* Respond to review comments

* - Rename to HtmlElementView
- Assert running on web
- Move test to Chrome-only file

This reverts commit d67f47b2.

* Add FlagsSummary and implement Listener

* Add viewType to PlatformViewLink

Re-initialize the controller when the viewType changes.

* Re-word `PlatformViewLink` doc comment for clarity

git@github.com:flutter/engine.git/compare/728ff715e88f...f52c0b9270de

git log 728ff715e88f..f52c0b9270de --no-merges --oneline
2019-08-28 bkonyi@google.com Roll src/third_party/dart 28f692165e..999007453a (2 commits)
2019-08-28 iska.kaushik@gmail.com [flutter_runner] Port Expose ViewBound Wireframe Functionality (flutter/engine#11635)
2019-08-28 yjbanov@google.com remove Web test blacklist; all tests should pass now (flutter/engine#11640)


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fix type: bin/tests -> bin/tasks

This reverts commit ddd31bce.

This is the continuation of https://github.com/flutter/engine/pull/11041 and https://github.com/flutter/flutter/pull/38574

This is not a breaking change as we're not removing `onReportTimings` API.
We're simply removing the use of it in our framework.

git@github.com:flutter/engine.git/compare/2d6631ae5d1c...728ff715e88f

git log 2d6631ae5d1c..728ff715e88f --no-merges --oneline
2019-08-28 iska.kaushik@gmail.com [fidl][flutter_runner] Port Migrate to new fit::optional compatible APIs (flutter/engine#11636)
2019-08-28 garyq@google.com Update the ui.LineMetrics.height metric to be more useful to external users (flutter/engine#11456)
2019-08-28 skia-flutter-autoroll@skia.org Roll src/third_party/skia b1ade2a4261e..a268dfb74add (5 commits) (flutter/engine#11643)
2019-08-28 brianosman@google.com Update CanvasSpy::onDrawEdgeAAQuad for Skia API change (flutter/engine#11638)


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* Make inspector details subtree depth configurable.

git@github.com:flutter/engine.git/compare/c9d9b5b8f8fc...2d6631ae5d1c

git log c9d9b5b8f8fc..2d6631ae5d1c --no-merges --oneline
2019-08-28 bkonyi@google.com Roll src/third_party/dart 10f8a00e9f..28f692165e (7 commits)


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This reverts commit 202c1b42.

git@github.com:flutter/engine.git/compare/b49430734124...c9d9b5b8f8fc

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2019-08-28 skia-flutter-autoroll@skia.org Roll src/third_party/skia 6064ecf7e993..b1ade2a4261e (32 commits) (flutter/engine#11629)
2019-08-28 brianosman@google.com Include <string> from font_asset_provider (flutter/engine#11622)


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git@github.com:flutter/engine.git/compare/f8c4546eb445...b49430734124

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2019-08-28 bkonyi@google.com Roll src/third_party/dart 5cbcc88304..10f8a00e9f (3 commits)


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This PR makes Scrollable scroll in correct direction when reverse: true on desktop and web

git@github.com:flutter/engine.git/compare/c030ccc52f6f...f8c4546eb445

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2019-08-28 bkonyi@google.com Roll src/third_party/dart 9b23c483ba..5cbcc88304 (17 commits)


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git@github.com:flutter/engine.git/compare/180adcbef0eb...c030ccc52f6f

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2019-08-28 bkonyi@google.com Roll src/third_party/dart 2bc0f49c00..9b23c483ba (1 commits)


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git@github.com:flutter/engine.git/compare/f93b9cbff143...180adcbef0eb

git log f93b9cbff143..180adcbef0eb --no-merges --oneline
2019-08-28 jonahwilliams@google.com make engine, ui, and sdk rewriter inputs of dill construction (flutter/engine#11554)
2019-08-28 dnfield@google.com Make Skia cache size channel respond with a value (flutter/engine#11550)
2019-08-27 bkonyi@google.com Roll src/third_party/dart f17d0563fa..2bc0f49c00 (10 commits)
2019-08-27 bmparr@google.com Add check to enable metal for import (flutter/engine#11537)
2019-08-27 pylaligand@google.com Update label of Fuchsia FIDL targets. (flutter/engine#11514)


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The name is very misleading at this point, since it does substantially
more than build flutter_assets. Name it more generically as a wrapper
for 'assemble' for macOS builds.

git@github.com:flutter/engine.git/compare/bf7796611dc1...f93b9cbff143

git log bf7796611dc1..f93b9cbff143 --no-merges --oneline
2019-08-27 bkonyi@google.com Roll src/third_party/dart 4015a79210..f17d0563fa (5 commits)
2019-08-27 dnfield@google.com Optionally strip bitcode when creating ios framework (flutter/engine#11530)
2019-08-27 dnfield@google.com Bitcode only for release (flutter/engine#11520)
2019-08-27 dnfield@google.com Strip bitcode from gen_snapshot (flutter/engine#11528)
2019-08-27 chris@bracken.jp Reuse texture cache in ios_external_texture_gl (flutter/engine#11524)
2019-08-27 skia-flutter-autoroll@skia.org Roll src/third_party/skia 4b5d65561943..6064ecf7e993 (1 commits) (flutter/engine#11500)
2019-08-27 mklim@google.com Assert that the JUnit tests are running on Java 8 (flutter/engine#11466)
2019-08-27 bkonyi@google.com Roll src/third_party/dart e878bdafe9..4015a79210 (15 commits)


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