remove WTF::Complex

Source/platform/audio/Biquad.h

Index: Source/platform/audio/Biquad.h
diff --git a/Source/platform/audio/Biquad.h b/Source/platform/audio/Biquad.h
index 3fcc1d440ef7da70c49b211f7f9d2cb57357ba35..25f18959125e04612060ae5e3fcc564ea8afdf8b 100644
--- a/Source/platform/audio/Biquad.h
+++ b/Source/platform/audio/Biquad.h
@@ -31,7 +31,7 @@
 
 #include "platform/PlatformExport.h"
 #include "platform/audio/AudioArray.h"
-#include "wtf/Complex.h"
+#include <complex>
 #include <sys/types.h>
 
 #if USE(WEBAUDIO_IPP)
@@ -65,11 +65,11 @@ public:
 
     // Set the biquad coefficients given a single zero (other zero will be conjugate)
     // and a single pole (other pole will be conjugate)
-    void setZeroPolePairs(const Complex& zero, const Complex& pole);
+    void setZeroPolePairs(const std::complex<double>& zero, const std::complex<double>& pole);
 
     // Set the biquad coefficients given a single pole (other pole will be conjugate)
     // (The zeroes will be the inverse of the poles)
-    void setAllpassPole(const Complex& pole);
+    void setAllpassPole(const std::complex<double>&);
 
     // Resets filter state
     void reset();