Fix WebSocket{Read,Write}Queue.

mojo/services/network/public/cpp/web_socket_write_queue.h

Index: mojo/services/network/public/cpp/web_socket_write_queue.h
diff --git a/mojo/services/network/public/cpp/web_socket_write_queue.h b/mojo/services/network/public/cpp/web_socket_write_queue.h
index b2c48fc9076d8fd8b7390aa77271a7df0dab5a60..ddfcadad624b2e04e9b6768eae8f82564e5e9736 100644
--- a/mojo/services/network/public/cpp/web_socket_write_queue.h
+++ b/mojo/services/network/public/cpp/web_socket_write_queue.h
@@ -19,7 +19,7 @@ namespace mojo {
 // See also: WebSocketReadQueue
 class WebSocketWriteQueue {
  public:
-  WebSocketWriteQueue(DataPipeProducerHandle handle);
+  explicit WebSocketWriteQueue(DataPipeProducerHandle handle);
   ~WebSocketWriteQueue();
 
   void Write(const char* data,
@@ -29,14 +29,17 @@ class WebSocketWriteQueue {
  private:
   struct Operation;
 
-  MojoResult TryToWrite();
+  void TryToWrite();
   void Wait();
   void OnHandleReady(MojoResult result);
 
   DataPipeProducerHandle handle_;
   common::HandleWatcher handle_watcher_;
   ScopedVector<Operation> queue_;
-  bool is_waiting_;
+  bool is_busy_;
+  // If non-null, the boolean it points to (allocated on the stack) will be set
+  // to true when this object is destructed.
+  bool* destructed_;
 };
 
 }  // namespace mojo