remove memoryinstrumentation

Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp

Index: Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp
diff --git a/Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp b/Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp
index 7b88ed63d4236885bf894151f9134b1b938ac212..20cb808241b94ca1441871a734ad4162b086da6c 100644
--- a/Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp
+++ b/Source/core/platform/audio/ffmpeg/FFTFrameFFMPEG.cpp
@@ -34,7 +34,6 @@
 
 #include "FFTFrame.h"
 
-#include "PlatformMemoryInstrumentation.h"
 #include "VectorMath.h"
 
 extern "C" {
@@ -81,18 +80,6 @@ struct RDFTContextProxy {
 
 }
 
-void reportMemoryUsage(const struct RDFTContext* const& object, WTF::MemoryObjectInfo* memoryObjectInfo)
-{
-    const RDFTContextProxy* proxyObject = reinterpret_cast<const RDFTContextProxy*>(object);
-
-    WTF::MemoryClassInfo info(memoryObjectInfo, proxyObject, 0, sizeof(RDFTContextProxy));
-
-    // The size of buffers is counted the same way as it is counted in ff_rdft_init && ff_fft_init.
-    size_t count = 1 << (proxyObject->nbits - 1);
-    info.addRawBuffer(proxyObject->fft.revtab, count * sizeof(uint16_t), "FFTBuffer", "revtab");
-    info.addRawBuffer(proxyObject->fft.tmpBuf, count * sizeof(FFTComplex), "FFTBuffer", "tmpBuf");
-}
-
 namespace WebCore {
 
 const int kMaxFFTPow2Size = 24;