Fail early if rtc::Thread::WrapCurrent failed to get more information for debugging.

BUG=413853

Review URL: https://codereview.chromium.org/574153002

Cr-Commit-Position: refs/heads/master@{#295170}

jingle/glue/thread_wrapper.cc

@@ -57,7 +57,7 @@ JingleThreadWrapper::JingleThreadWrapper(
   DCHECK(!rtc::Thread::Current());
   weak_ptr_ = weak_ptr_factory_.GetWeakPtr();
   rtc::MessageQueueManager::Add(this);
-  WrapCurrent();
+  CHECK(WrapCurrent());
 }
 
 JingleThreadWrapper::~JingleThreadWrapper() {