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

include/gpu/gl/angle/SkANGLEGLContext.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkANGLEGLContext_DEFINED
 #define SkANGLEGLContext_DEFINED
 
@@ skipping 24 matching lines @@
     }
 
     GrEGLImage texture2DToEGLImage(GrGLuint texID) const override;
     void destroyEGLImage(GrEGLImage) const override;
     GrGLuint eglImageToExternalTexture(GrEGLImage) const override;
     SkGLContext* createNew() const override;
 
     // The param is an EGLNativeDisplayType and the return is an EGLDispay.
     static void* GetD3DEGLDisplay(void* nativeDisplay, bool useGLBackend);
 
+    static void ReleaseGpuAPIsInThread();
 private:
     SkANGLEGLContext(bool preferGLBackend);
     void destroyGLContext();
 
     void onPlatformMakeCurrent() const override;
     void onPlatformSwapBuffers() const override;
     GrGLFuncPtr onPlatformGetProcAddress(const char* name) const override;
 
     void* fContext;
     void* fDisplay;
     void* fSurface;
     bool  fIsGLBackend;
 };
 
 #endif
 
 #endif