WTF/std normalization: replace WTF::Vector::first() with ::front()

third_party/WebKit/Source/platform/audio/Reverb.cpp

 /*
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 250 matching lines @@
     destinationBus->zero();
   }
 }
 
 void Reverb::reset() {
   for (size_t i = 0; i < m_convolvers.size(); ++i)
     m_convolvers[i]->reset();
 }
 
 size_t Reverb::latencyFrames() const {
-  return !m_convolvers.isEmpty() ? m_convolvers.first()->latencyFrames() : 0;
+  return !m_convolvers.isEmpty() ? m_convolvers.front()->latencyFrames() : 0;
 }
 
 }  // namespace blink