Prevent recursive GlobalMutex locking by ANGLE itself. Instead of adding `ANGLE_SCOPED_GLOBAL_LOCK()` for `glEGLImage*` GLES APIs, this CL uses new `SCOPED_GLOBAL_AND_SHARE_CONTEXT_LOCK()` macro in place of `SCOPED_SHARE_CONTEXT_LOCK()`. This will remove dependency on recursive mutex for ANGLE itself. Recursive mutex is still required for Android Vulkan or in specific cases when using layer libraries. Bug: chromium:1383195 Change-Id: I0c379c45c046b0f5e5dd3ea64a45d33b0ad3ee43 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4404777 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Igor Nazarov <i.nazarov@samsung.com>