Migrate WTF::Deque::first() to ::front()

third_party/WebKit/Source/modules/websockets/DocumentWebSocketChannel.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 379 matching lines @@
   if (final) {
     m_messages.pop_front();
     m_sentSizeOfTopMessage = 0;
   }
 }
 
 void DocumentWebSocketChannel::processSendQueue() {
   DCHECK(m_handle);
   uint64_t consumedBufferedAmount = 0;
   while (!m_messages.isEmpty() && !m_blobLoader) {
-    Message* message = m_messages.first().get();
+    Message* message = m_messages.front().get();
     if (m_sendingQuota == 0 && message->type != MessageTypeClose)
       break;
     switch (message->type) {
       case MessageTypeText:
         sendInternal(WebSocketHandle::MessageTypeText, message->text.data(),
                      message->text.length(), &consumedBufferedAmount);
         break;
       case MessageTypeBlob:
         DCHECK(!m_blobLoader);
         m_blobLoader = new BlobLoader(message->blobDataHandle, this);
@@ skipping 254 matching lines @@
 
   if (m_client)
     m_client->didStartClosingHandshake();
 }
 
 void DocumentWebSocketChannel::didFinishLoadingBlob(DOMArrayBuffer* buffer) {
   m_blobLoader.clear();
   DCHECK(m_handle);
   // The loaded blob is always placed on m_messages[0].
   DCHECK_GT(m_messages.size(), 0u);
-  DCHECK_EQ(m_messages.first()->type, MessageTypeBlob);
+  DCHECK_EQ(m_messages.front()->type, MessageTypeBlob);
   // We replace it with the loaded blob.
-  m_messages.first() = new Message(buffer);
+  m_messages.front() = new Message(buffer);
   processSendQueue();
 }
 
 void DocumentWebSocketChannel::didFailLoadingBlob(
     FileError::ErrorCode errorCode) {
   m_blobLoader.clear();
   if (errorCode == FileError::kAbortErr) {
     // The error is caused by cancel().
     return;
   }
@@ skipping 32 matching lines @@
   WebSocketChannel::trace(visitor);
 }
 
 std::ostream& operator<<(std::ostream& ostream,
                          const DocumentWebSocketChannel* channel) {
   return ostream << "DocumentWebSocketChannel "
                  << static_cast<const void*>(channel);
 }
 
 }  // namespace blink