Merge "Fix typo."

   - Secondly, if you want to determine from an application that can't call out to ADB for this, you can check for the [EGL_ANDROID_GLES_layers](../../specs/EGL_ANDROID_GLES_layers.txt). It simply indicates support of this layering system:

     ```cpp

     std::string display_extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);

     if (display_extension.find("EGL_ANDROID_GLES_layers") != std::string::npos)

     if (display_extensions.find("EGL_ANDROID_GLES_layers") != std::string::npos)

     {

        // Layers are supported!

     }