The [use custom session protocol spec](https://github.com/electron/electron/blob/fea165bef8e1edf99b6e1500da89d015e76cc8e1/spec/api-protocol-spec.js#L874) is curently crashing on master on Windows 64-bit.

For some reason it isn't failing the build though which is why it wasn't caught earlier, will look into that separately.

I bisected and it started happening in https://github.com/electron/electron/pull/9358

```
Backtrace:
        tracked_objects::ThreadData::next [0x00007FF959D9C964+1437860]
        purecall [0x00007FF96DD94A74+52]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94CA8C4B8+13298808]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94CA8C6A8+13299304]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94C612AB5+8606325]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94C612948+8605960]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94C610F34+8599284]
        tracked_objects::ThreadData::next [0x00007FF959C7372D+220781]
        tracked_objects::ThreadData::next [0x00007FF959CAD996+458966]
        tracked_objects::ThreadData::next [0x00007FF959CAC0D0+452624]
        tracked_objects::ThreadData::next [0x00007FF959CB0377+469687]
        tracked_objects::ThreadData::next [0x00007FF959CB0EA4+472548]
        tracked_objects::ThreadData::next [0x00007FF959CF4D1E+750686]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94C60A00F+8570831]
        ??1?$MessageT@UInputHostMsg_MoveCaret_ACK_Meta@@V?$tuple@$$V@std@@X@IPC@@UEAA@XZ [0x00007FF94C60AEB5+8574581]
        tracked_objects::ThreadData::next [0x00007FF959D34BF7+1012535]
        tracked_objects::ThreadData::next [0x00007FF959D28315+961109]
        BaseThreadInitThunk [0x00007FF97ABE8364+20]
        RtlUserThreadStart [0x00007FF97D5670D1+33]
```

/cc @deepak1556 
brightray/browser/browser_context.cc
const std::string& partition, bool in_memory) {
  PartitionKey key(partition, in_memory);
  if (browser_context_map_[key].get())
    return make_scoped_refptr(browser_context_map_[key].get());
  return nullptr;
}
BrowserContext::BrowserContext(const std::string& partition, bool in_memory)
    : in_memory_(in_memory),
      resource_context_(new ResourceContext),
      storage_policy_(new SpecialStoragePolicy),
      weak_factory_(this) {
  if (!PathService::Get(DIR_USER_DATA, &path_)) {
    PathService::Get(DIR_APP_DATA, &path_);
    path_ = path_.Append(base::FilePath::FromUTF8Unsafe(GetApplicationName()));
    PathService::Override(DIR_USER_DATA, path_);
  }
  if (!in_memory_ && !partition.empty())
    path_ = path_.Append(FILE_PATH_LITERAL("Partitions"))
                .Append(base::FilePath::FromUTF8Unsafe(
                    MakePartitionName(partition)));
  content::BrowserContext::Initialize(this, path_);
  browser_context_map_[PartitionKey(partition, in_memory)] = GetWeakPtr();
}
BrowserContext::~BrowserContext() {