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### Issue Details

* **Electron Version:**
  * 10.1.3
* **Operating System:**
  * win7 sp1 x64

- without worldSafeExecuteJavaScript, `(webFrame|webContents).executeJavaScript('new Promise(resolve => setTimeout(() => resolve(2), 3000));')` works as expected; the executeJavaScript promise waits for the eval promise.
- in the case of webFrame the evaled promise is returned raw
- in the case of webContents the promise is marshaled
- with worldSafeExecuteJavaScript, both error with: "An object could not be cloned"
- webContents should continue marshaling promises, otherwise its an unnecessary breaking change
- webFrame should marshal promises for consistency with webContents
- the clone restriction would be on the promise resolve value

### To Reproduce
`(webFrame|webContents).executeJavaScript('new Promise(resolve => setTimeout(() => resolve(2), 3000));')`


shell/renderer/api/electron_api_context_bridge.cc
std::shared_ptr<gin_helper::Promise<v8::Local<v8::Value>>> proxied_promise(
        new gin_helper::Promise<v8::Local<v8::Value>>(
            destination_context->GetIsolate()));
    v8::Local<v8::Promise> proxied_promise_handle =
        proxied_promise->GetHandle();
    v8::Global<v8::Context> global_then_source_context(
        source_context->GetIsolate(), source_context);
    v8::Global<v8::Context> global_then_destination_context(
        destination_context->GetIsolate(), destination_context);
    global_then_source_context.SetWeak();
    global_then_destination_context.SetWeak();
    auto then_cb = base::BindOnce(
        [](std::shared_ptr<gin_helper::Promise<v8::Local<v8::Value>>>
               proxied_promise,
           v8::Isolate* isolate, v8::Global<v8::Context> global_source_context,
           v8::Global<v8::Context> global_destination_context,
           v8::Local<v8::Value> result) {
          if (global_source_context.IsEmpty() ||
              global_destination_context.IsEmpty())
            return;
          context_bridge::ObjectCache object_cache;
          auto val =
              PassValueToOtherContext(global_source_context.Get(isolate),
                                      global_destination_context.Get(isolate),
                                      result, &object_cache, false, 0);
          if (!val.IsEmpty())
            proxied_promise->Resolve(val.ToLocalChecked());