Clean up EGL thread state at thread exit in nanobench and DM

src/gpu/gl/glx/SkCreatePlatformGLContext_glx.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gl/SkGLContext.h"
 
 #include <X11/Xlib.h>
@@ skipping 324 matching lines @@
 
 SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, SkGLContext* shareContext) {
     GLXGLContext* glxShareContext = reinterpret_cast<GLXGLContext*>(shareContext);
     GLXGLContext *ctx = new GLXGLContext(forcedGpuAPI, glxShareContext);
     if (!ctx->isValid()) {
         delete ctx;
         return nullptr;
     }
     return ctx;
 }
+
+void SkReleasePlatformGLAPIsInThread() {
+}