Removing using declarations that import names in the C++ Standard library.

Source/modules/webaudio/AudioNodeInput.cpp

Index: Source/modules/webaudio/AudioNodeInput.cpp
diff --git a/Source/modules/webaudio/AudioNodeInput.cpp b/Source/modules/webaudio/AudioNodeInput.cpp
index 24da41ddfa1bf27a64ca4084eccee688179eb1ab..7c79549e62153cb52c4a8ce6913a42609675db6c 100644
--- a/Source/modules/webaudio/AudioNodeInput.cpp
+++ b/Source/modules/webaudio/AudioNodeInput.cpp
@@ -32,8 +32,6 @@
 #include "modules/webaudio/AudioNodeOutput.h"
 #include <algorithm>
 
-using namespace std;
-
 namespace WebCore {
 
 inline AudioNodeInput::AudioNodeInput(AudioNode* node)
@@ -164,11 +162,11 @@ unsigned AudioNodeInput::numberOfChannels() const
         AudioNodeOutput* output = *i;
         // Use output()->numberOfChannels() instead of output->bus()->numberOfChannels(),
         // because the calling of AudioNodeOutput::bus() is not safe here.
-        maxChannels = max(maxChannels, output->numberOfChannels());
+        maxChannels = std::max(maxChannels, output->numberOfChannels());
     }
 
     if (mode == AudioNode::ClampedMax)
-        maxChannels = min(maxChannels, static_cast<unsigned>(node()->channelCount()));
+        maxChannels = std::min(maxChannels, static_cast<unsigned>(node()->channelCount()));
 
     return maxChannels;
 }