This plugin is implemented internally by the engine to integrate with the asset
system.

This fixes this Fuchsia build, which uses the latest //lib/ftl.

Update buildroot (for target triple) and boringssl (for Clang IAS) fixes for non-ARM platforms. (#3077)

gclient now uses this to decide whether to look at a dependent
repo's DEPS file, which is needed for buildtools.

See https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/NsGSfdLaDMI
for more detail.

This reverts commit cfc2b0cd.

The include paths for GL headers in mojo/public are busted

This reverts commit 92fdf25d.

This breaks the android x86 build:

gn gen --check in out/android_debug_x64
ERROR at //mojo/public/tools/BUILD.gn:59:9: Assertion failed.
        assert(current_cpu == "arm",
        ^-----
Only arm version prebuilt netowrk_service.mojo is available.
step returned non-zero exit code: 1

* Namespaces have been updated to reflect the move from //flutter/sky/shell to //flutter/shell.
* shell/BUILD.gn file has been split into smaller GN files for each subcomponent of the shell (common, GPU, diagnostic, testing).
* GN dependencies have been rewritten to stop exposing common shell dependencies as public. Duplicates have also been removed.
* GPU subcomponent has been updated make it more suitable for Vulkan integration.
* The GLFW backend has been resurrected.

Originally, this was a step that had to be carried out manually. Presumably because we did not want developers to download the Android SDK and NDK if they were not targetting Android. In practice, this is rarely the case. Even the buildbots unconditionally run the script (though they don’t need Android artifacts on the Mac since there is no Mac to Android builder).

This removes another //base dependency and will let us reuse this code
on Fuchsia.

Pulls in fixes related to incremental builds of Dart sources that end up in the snapshotter.

This is now the canonical location of the Mojo public SDK.