Removing "using" declarations that import names in the C++ Standard library.(Source/platform/audio)

Source/platform/audio/HRTFElevation.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 21 matching lines @@
 
 #include "platform/audio/HRTFElevation.h"
 
 #include <math.h>
 #include <algorithm>
 #include "platform/audio/AudioBus.h"
 #include "platform/audio/HRTFPanner.h"
 #include "wtf/ThreadingPrimitives.h"
 #include "wtf/text/StringHash.h"
 
-using namespace std;
-
 namespace blink {
 
 const unsigned HRTFElevation::AzimuthSpacing = 15;
 const unsigned HRTFElevation::NumberOfRawAzimuths = 360 / AzimuthSpacing;
 const unsigned HRTFElevation::InterpolationFactor = 8;
 const unsigned HRTFElevation::NumberOfTotalAzimuths = NumberOfRawAzimuths * InterpolationFactor;
 
 // Total number of components of an HRTF database.
 const size_t TotalNumberOfResponses = 240;
 
@@ skipping 188 matching lines @@
         return nullptr;
 
     OwnPtr<HRTFKernelList> kernelListL = adoptPtr(new HRTFKernelList(NumberOfTotalAzimuths));
     OwnPtr<HRTFKernelList> kernelListR = adoptPtr(new HRTFKernelList(NumberOfTotalAzimuths));
 
     // Load convolution kernels from HRTF files.
     int interpolatedIndex = 0;
     for (unsigned rawIndex = 0; rawIndex < NumberOfRawAzimuths; ++rawIndex) {
         // Don't let elevation exceed maximum for this azimuth.
         int maxElevation = maxElevations[rawIndex];
-        int actualElevation = min(elevation, maxElevation);
+        int actualElevation = std::min(elevation, maxElevation);
 
         bool success = calculateKernelsForAzimuthElevation(rawIndex * AzimuthSpacing, actualElevation, sampleRate, subjectName, kernelListL->at(interpolatedIndex), kernelListR->at(interpolatedIndex));
         if (!success)
             return nullptr;
 
         interpolatedIndex += InterpolationFactor;
     }
 
     // Now go back and interpolate intermediate azimuth values.
     for (unsigned i = 0; i < NumberOfTotalAzimuths; i += InterpolationFactor) {
@@ skipping 70 matching lines @@
     double frameDelay2R = m_kernelListR->at(azimuthIndex2)->frameDelay();
 
     // Linearly interpolate delays.
     frameDelayL = (1.0 - azimuthBlend) * frameDelayL + azimuthBlend * frameDelay2L;
     frameDelayR = (1.0 - azimuthBlend) * frameDelayR + azimuthBlend * frameDelay2R;
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)