Revert "Load correct libGLESv2 on Linux and Mac." This reverts commit dd815b623e60a1e1550f328104ffcd7caf20fde1. Reason for revert: Broke https://luci-milo.appspot.com/p/chromium/builders/luci.chromium.ci/win-rel/8006 Original change's description: > Load correct libGLESv2 on Linux and Mac. > > libEGL was implicitly loading libGLESv2 on startup. This is bad > because on platforms like Linux and Mac we could sometimes use the > incorrect rpath. This in turn meant we needed workarounds like using > "_angle" extensions to our shared objects to get the correct loading > behaviour. > > Fix this by loading libGLESv2 dynamically in libEGL. We build the > loader automatically from egl.xml. The loader itself is lazily > initialized on every EGL entry point call. This is necessary because > on Linux, etc, there is no equivalent to Windows' DLLMain. > > We also use an EGL.h with different generation options so we have the > proper function pointer types. A README is included for instructions > on how to regenerate EGL.h. > > The entry point generation script is refactored into a helper class > that is used in the loader generator. Also adds the libGLESv2 versions > of the EGL entry points in the DEF file on Windows. This allows them to > be imported properly in 32-bit configurations. > > Also fixes up some errors in ANGLE's entry point definitions. Also > includes a clang-format disable rule for the Khronos headers. > > This CL will help us to run ANGLE tests against native drivers. > > Bug: angleproject:2871 > Change-Id: Id6ecf969308f17b1be4083538428c9c1a1836572 > Reviewed-on: https://chromium-review.googlesource.com/c/1370725 > Commit-Queue: Jamie Madill <jmadill@chromium.org> > Reviewed-by: Geoff Lang <geofflang@chromium.org> TBR=ynovikov@chromium.org,geofflang@chromium.org,jmadill@chromium.org Change-Id: I921b3c45435ab4f05cbc2d1c1172b4185d6257b0 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: angleproject:2871 Reviewed-on: https://chromium-review.googlesource.com/c/1378887 Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Commit-Queue: Yuly Novikov <ynovikov@chromium.org>