* Revert some partial webgl+oop+vr code.
* More missing FuncScope.
* Fix compile errors.
* Refactor some ifdef'd code to branch and compile on all platforms.
* -Wno-error=unused-result for GCC to allow for (void)MustUse().
Depends on D55739
Differential Revision: https://phabricator.services.mozilla.com/D56169
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extra : moz-landing-system : lando
* Context loss using RAII
* Move Program reflection Client-side
Depends on D54018
Differential Revision: https://phabricator.services.mozilla.com/D54019
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extra : moz-landing-system : lando
Splits WebGLContext into ClientWebGLContext and HostWebGLContext. The Client enables the JS-control of a WebGL context in a content procecss while the Host executes the WebGL graphics operations (via a WebGLContext that maintains much of the existing code) in the compositor process. At this point, the cross-process behavior is disabled -- this series of patches is an incremental step toward that final goal.
Differential Revision: https://phabricator.services.mozilla.com/D54018
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extra : moz-landing-system : lando