Avoid using two-phase read with MOJO_READ_DATA_FLAG_ALL_OR_NONE.

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

Index: mojo/services/network/public/cpp/web_socket_read_queue.h
diff --git a/mojo/services/network/public/cpp/web_socket_read_queue.h b/mojo/services/network/public/cpp/web_socket_read_queue.h
index 5ba5fa576fa9e421a15db6fb7d33cc0f1317f1d2..b270892e397cf915d7a59a380262941a7c4f92cc 100644
--- a/mojo/services/network/public/cpp/web_socket_read_queue.h
+++ b/mojo/services/network/public/cpp/web_socket_read_queue.h
@@ -23,7 +23,8 @@ class WebSocketReadQueue {
   explicit WebSocketReadQueue(DataPipeConsumerHandle handle);
   ~WebSocketReadQueue();
 
-  void Read(uint32_t num_bytes, base::Callback<void(const char*)> callback);
+  void Read(uint32_t num_bytes,
+            const base::Callback<void(const char*)>& callback);
 
  private:
   struct Operation;