**Is your feature request related to a problem? Please describe.**
The clipboard module depends on the remote module on Linux.

**Describe the solution you'd like**
It should be implemented using dedicated IPCs that are properly validated to avoid security issues.

**Describe alternatives you've considered**
The app can call the clipboard APIs in the main process in response to app-level IPCs from the renderer.

**Additional context**
Follow-up from https://github.com/electron/electron/pull/13028

atom/common/api/atom_api_native_image.cc
float scale_factor = GetScaleFactorFromOptions(args);
  if (scale_factor == 1.0f) {
    
    scoped_refptr<base::RefCountedMemory> png = image_.As1xPNGBytes();
    if (png->size() > 0) {
      const char* data = reinterpret_cast<const char*>(png->front());
      size_t size = png->size();
      return node::Buffer::Copy(args->isolate(), data, size).ToLocalChecked();
    }
  }
  const SkBitmap bitmap =
      image_.AsImageSkia().GetRepresentation(scale_factor).GetBitmap();
  std::vector<unsigned char> encoded;
  gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &encoded);
  const char* data = reinterpret_cast<char*>(encoded.data());
  size_t size = encoded.size();
  return node::Buffer::Copy(args->isolate(), data, size).ToLocalChecked();
}
v8::Local<v8::Value> NativeImage::ToBitmap(mate::Arguments* args) {