Roll Chrome into Mojo.

net/url_request/sdch_dictionary_fetcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/url_request/sdch_dictionary_fetcher.h"
 
 #include <stdint.h>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 42 matching lines @@
     // TODO(rdsmith): log this error to the net log of the URLRequest
     // initiating this fetch, once URLRequest will be passed here.
     SdchManager::SdchErrorRecovery(
         SDCH_DICTIONARY_PREVIOUSLY_SCHEDULED_TO_DOWNLOAD);
     return;
   }
 
   attempted_load_.insert(dictionary_url);
   fetch_queue_.push(dictionary_url);
 
+  // If the loop is already processing, it'll pick up the above in the
+  // normal course of events.
+  if (next_state_ != STATE_NONE)
+    return;
+
   next_state_ = STATE_IDLE;
 
   // There are no callbacks to user code from the dictionary fetcher,
   // and Schedule() is only called from user code, so this call to DoLoop()
   // does not require an |if (in_loop_) return;| guard.
   DoLoop(OK);
 }
 
 void SdchDictionaryFetcher::Cancel() {
   DCHECK(CalledOnValidThread());
@@ skipping 177 matching lines @@
   current_request_.reset();
   buffer_ = NULL;
   dictionary_.clear();
 
   next_state_ = STATE_IDLE;
 
   return OK;
 }
 
 }  // namespace net