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### Preflight Checklist
<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->

* [x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

### Problem Description
<!-- Is your feature request related to a problem? Please add a clear and concise description of what the problem is. -->

They is no way to choose the paper format (A4, A3, Letter, ...) when printing with `webContents.print()`.

### Proposed Solution
<!-- Describe the solution you'd like in a clear and concise manner -->

Add something like the `pageSize` option which is available in [`webContents.printToPDF()`](https://electronjs.org/docs/api/web-contents#contentsprinttopdfoptions-callback).

shell/browser/api/electron_api_web_contents.cc
if (!enable_devtools_)
    return;
  if (!managed_ontents()->GetDevToolsWs())
    OpenDevTools(nullptr);
  managed_ontents()->InspectElement(x, y);
}
void Ws::InspectSharedWorkerById(const std::string& workerId) {
  if (type_ == Type::REMOTE)
    return;
  if (!enable_devtools_)
    return;
  for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) {
    if (agent_host->GetType() ==
        content::DevToolsAgentHost::kTypeSharedWorker) {
      if (agent_host->GetId() == workerId) {
        OpenDevTools(nullptr);
        managed_ontents()->AttachTo(agent_host);
        break;
      }
    }
  }
}
std::vector<scoped_refptr<content::DevToolsAgentHost>>
Ws::GetAllSharedWorkers() {
  std::vector<scoped_refptr<content::DevToolsAgentHost>> shared_workers;
  if (type_ == Type::REMOTE)
    return shared_workers;
  if (!enable_devtools_)
    return shared_workers;
  for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) {