Ensure attaching to an application with an existing DDS instance is not treated as a fatal error (#70847)

* d6beaed56 Roll Fuchsia Linux SDK from gkfmiRsIl... to un3JixwuO... (flutter/engine#22744)

* 8832b480e Roll Skia from 888c5d3e57eb to 51b74afb84d4 (12 revisions) (flutter/engine#22746)

* e89090181 Don't register CanvasKit with `define` (flutter/engine#22745)

* 3c5167923 Roll Skia from 51b74afb84d4 to 452369182f6e (1 revision) (flutter/engine#22749)

* 5bf653353 Introduce a delegate class for gpu metal rendering (flutter/engine#22611)

* 5131aa40f Roll Skia from 452369182f6e to f2efb80bc316 (4 revisions) (flutter/engine#22750)

* 7b5f79f1a fuchsia: Ensure full-screen input interceptor (flutter/engine#22687)

* cec8a6e26 Manual roll of Dart SDK from ce76503f5b46 to dcd5a8f005a (flutter/engine#22766)

* 001a51193 Roll Fuchsia Linux SDK from un3JixwuO... to Bnaeivv07... (flutter/engine#22757)

* b9615b1d3 Roll Fuchsia Mac SDK from 36uDTGJQp... to qpkZl0s5J... (flutter/engine#22753)

* c4c476360 Roll Skia from f2efb80bc316 to 8d78da910e45 (5 revisions) (flutter/engine#22754)

* dbd1abec1 Roll Dart SDK from dcd5a8f005a2 to 960620d2e811 (794 revisions) (flutter/engine#22768)

* 1c2a6bd0a Fix the unchecked conversion warning for searchPaths in PlayStoreDynamicFeatureManager (flutter/engine#22654)

* 81af789ed add file package to deps in prep for glob update (flutter/engine#22770)

* a35e3fe4a Let FlutterFragment not pop the whole activity by default when more fragments are in the activity (flutter/engine#22692)

* adb3312f0 Revert "Introduce a delegate class for gpu metal rendering (#22611)" (flutter/engine#22775)

* bcc8832c1 Cleanup dart_runner examples & tests. (flutter/engine#22769)

* 609307de1 Roll Skia from 8d78da910e45 to fd41d878b13d (20 revisions) (flutter/engine#22772)

* 587c023ab [web] Add new line break type (prohibited) (flutter/engine#22771)

* 6b2ed2b5e Roll Skia from fd41d878b13d to 70fe17e12f38 (6 revisions) (flutter/engine#22776)

* 7910a1732 Roll Dart SDK from 960620d2e811 to 7a2a3968ef53 (12 revisions) (flutter/engine#22778)

* f4ada800d Roll Skia from 70fe17e12f38 to 4c6f57a23e63 (1 revision) (flutter/engine#22781)

* 3101dff34 [web] Optimize Matrix4.identity (flutter/engine#22622)

* a4ce848df Add FlutterPlayStoreSplitApplication for simpler opt in to Split AOT (flutter/engine#22752)

* 747b7912c Add file.dart to DEPS (flutter/engine#22794)

* 40fa345c0 Fix race condition in key event handling on Android (flutter/engine#22658)

* d2ad4419b Fix PlatformDispatcher.locale to return something meaningful when there are no locales. (flutter/engine#22608)

* b9a0b5e26 Roll Skia from 4c6f57a23e63 to a927771c9cce (10 revisions) (flutter/engine#22802)

* 96d63e5b2 Roll Dart SDK from 7a2a3968ef53 to e9a03fd98faa (5 revisions) (flutter/engine#22801)

* cdf72dade Roll Skia from a927771c9cce to 7b776b514933 (3 revisions) (flutter/engine#22803)

* a0c8b676f Roll buildroot and benchmark (flutter/engine#22804)

* c3c3ec6bc Roll Fuchsia Mac SDK from qpkZl0s5J... to 7O11wjLVX... (flutter/engine#22805)

* 662530808 Revert "Roll buildroot and benchmark (#22804)" (flutter/engine#22816)

* 64d9add1d Add a golden scenario test for fallback font rendering on iOS take 3 (flutter/engine#22736)

* 7d7a26019 Add static text trait to plain semantics object with label in iOS (flutter/engine#22811)

* 22e114343 Roll Skia from 7b776b514933 to c504ecda03b8 (6 revisions) (flutter/engine#22808)

* 65254eb7e Roll Dart SDK from e9a03fd98faa to 5acaa5f14b03 (1 revision) (flutter/engine#22810)

* 3926b2130 Roll Fuchsia Linux SDK from Bnaeivv07... to W14Qninrb... (flutter/engine#22817)

* 5eb505fa1 Roll Fuchsia Mac SDK from 7O11wjLVX... to Z_-ciOYM9... (flutter/engine#22820)

* d85cb1070 add trace kernel flag to allowlist (flutter/engine#22812)

* 14cb0661e [embedder] Compositor can specify that no backing stores be cached (flutter/engine#22780)

* eb6eabcb5 Reland "Introduce a delegate class for gpu metal rendering (#22611)" (flutter/engine#22777)

* 644dd65a3 Temporarily reduce e2e test matrix to stop flaky web engine builds (flutter/engine#22824)

* 105004dd2 Stop using the List constructor. (flutter/engine#22793)

* 34f49a161 Roll Dart SDK from 5acaa5f14b03 to cfaa7606cbf5 (2 revisions) (flutter/engine#22827)

* 6c8342f76 Revert "Fix race condition in key event handling on Android (#22658)" (flutter/engine#22823)

* 1c2a8f90e Roll Skia from c504ecda03b8 to 9443d58af292 (16 revisions) (flutter/engine#22828)

* b63e91147 Better handle image codec instantiation failure (flutter/engine#22809)

* 1358fda35 Generate Maven metadata files for engine artifacts (flutter/engine#22685)

* 079c66940 Generate gen_snapshot_armv7 and gen_snapshot_arm64 (flutter/engine#22818)

* fcbfa9f52 Split AOT Engine Runtime (flutter/engine#22624)

* 24d289e40 Roll Fuchsia Linux SDK from W14Qninrb... to M_8svVndh... (flutter/engine#22842)

* 78b567f7d Reland: "Fix race condition in key event handling on Android (#22658)" (flutter/engine#22834)

* 7d32cead6 (MacOS) Add FlutterGLCompositor with support for rendering multiple layers (flutter/engine#22782)

* a713174aa Roll Skia from 9443d58af292 to c7112edbe0f4 (10 revisions) (flutter/engine#22839)

* bee352c7b Roll Dart SDK from cfaa7606cbf5 to 97cfd05b3cb3 (2 revisions) (flutter/engine#22840)

* e5f510f7d [web] Fix event transform between mousedown/up due to mouse move event (flutter/engine#22813)

* 04b98dc2a Roll Fuchsia Mac SDK from Z_-ciOYM9... to DRN4P3zbe... (flutter/engine#22841)

* 0e3b2cf1f Roll Skia from c7112edbe0f4 to d39aec0e40ec (17 revisions) (flutter/engine#22844)

* e71c6f4d7 leaving only html tests (flutter/engine#22846)

* 37738353c Make CkPicture resurrectable (flutter/engine#22807)

* bd394a1ac Roll Skia from d39aec0e40ec to 38921cafe1bb (7 revisions) (flutter/engine#22847)

* 66f44c6c3 Roll Dart SDK from 97cfd05b3cb3 to a37a4d42e53d (4 revisions) (flutter/engine#22849)

* bdadaad20 Add delayed event delivery for Linux. (flutter/engine#22577)

* 48befc59d More rename from GPU thread to raster thread (flutter/engine#22819)

* 9b1b7f6e8 Roll Skia from 38921cafe1bb to abcc1ecdfd0c (8 revisions) (flutter/engine#22851)

* 14a6fd97c Fix NPE when platform plugin delegate is null (flutter/engine#22852)

* DropdownButton should display the value over hint and disabledHint if a DropdownButton.value is defined

In principle this is backwards compatible; I just merged all the classes into one and deprecated everything that became redundant as a result.

Create symlinks for local engine Maven metadata files required by the Android Gradle plugin (#71600)

This reverts commit d047d108.