Rewrite references to "wtf/" to "platform/wtf/" in platform/audio.

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

Index: third_party/WebKit/Source/platform/audio/AudioBus.cpp
diff --git a/third_party/WebKit/Source/platform/audio/AudioBus.cpp b/third_party/WebKit/Source/platform/audio/AudioBus.cpp
index 7273746d24342b257dda5065105f11259a1370b7..5ab57a5bfd76e605b0d1878c85350e4c5b10c83f 100644
--- a/third_party/WebKit/Source/platform/audio/AudioBus.cpp
+++ b/third_party/WebKit/Source/platform/audio/AudioBus.cpp
@@ -27,17 +27,18 @@
  */
 
 #include "platform/audio/AudioBus.h"
+
+#include <assert.h>
+#include <math.h>
+#include <algorithm>
+#include <memory>
 #include "platform/audio/AudioFileReader.h"
 #include "platform/audio/DenormalDisabler.h"
 #include "platform/audio/SincResampler.h"
 #include "platform/audio/VectorMath.h"
+#include "platform/wtf/PtrUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebAudioBus.h"
-#include "wtf/PtrUtil.h"
-#include <algorithm>
-#include <assert.h>
-#include <math.h>
-#include <memory>
 
 namespace blink {