Use void* again for PlatformFence

tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp

Index: tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp
diff --git a/tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp b/tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp
index 8fdd3fea867137c8ea18562e54233d3654933a6b..06bd70f85214be20b499368bbbaae00816a95763 100644
--- a/tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp
+++ b/tools/gpu/gl/egl/CreatePlatformGLTestContext_egl.cpp
@@ -320,6 +320,8 @@ void EGLFenceSync::deleteFence(sk_gpu_test::PlatformFence platformFence) const {
     eglDestroySyncKHR(fDisplay, eglsync);
 }
 
+GR_STATIC_ASSERT(sizeof(EGLSyncKHR) <= sizeof(sk_gpu_test::PlatformFence));
+
 }  // anonymous namespace
 
 namespace sk_gpu_test {
@@ -337,4 +339,3 @@ GLTestContext *CreatePlatformGLTestContext(GrGLStandard forcedGpuAPI,
     return ctx;
 }
 }  // namespace sk_gpu_test
-