command_buffer_gles2: Add test command_buffer_gles2_test for command_buffer_gles2

gpu/gles2_conform_support/egl/egl.cc

Index: gpu/gles2_conform_support/egl/egl.cc
diff --git a/gpu/gles2_conform_support/egl/egl.cc b/gpu/gles2_conform_support/egl/egl.cc
index a61bf538ffee73f62231a85ddf39bddcae19d44d..5a81954bd10d4ad4368cd603df5a20dfe3306663 100644
--- a/gpu/gles2_conform_support/egl/egl.cc
+++ b/gpu/gles2_conform_support/egl/egl.cc
@@ -143,9 +143,10 @@ EGLAPI EGLBoolean EGLAPIENTRY eglInitialize(EGLDisplay dpy,
 
     gfx::GLSurface::InitializeOneOff();
   }
-
-  *major = 1;
-  *minor = 4;
+  if (major)
+    *major = 1;
+  if (minor)
+    *minor = 4;
   return EglSuccess(EGL_TRUE);
 }