Change members's order and combine duplicated method for FFTFrame.

Source/platform/audio/mac/FFTFrameMac.cpp

Index: Source/platform/audio/mac/FFTFrameMac.cpp
diff --git a/Source/platform/audio/mac/FFTFrameMac.cpp b/Source/platform/audio/mac/FFTFrameMac.cpp
index 718fa14d0882ed6a710dfba46af47b86f6cd603d..b93428b72d484259b4aac8e50923b4dcc8ff51f0 100644
--- a/Source/platform/audio/mac/FFTFrameMac.cpp
+++ b/Source/platform/audio/mac/FFTFrameMac.cpp
@@ -80,9 +80,9 @@ FFTFrame::FFTFrame()
 FFTFrame::FFTFrame(const FFTFrame& frame)
     : m_FFTSize(frame.m_FFTSize)
     , m_log2FFTSize(frame.m_log2FFTSize)
-    , m_FFTSetup(frame.m_FFTSetup)
     , m_realData(frame.m_FFTSize)
     , m_imagData(frame.m_FFTSize)
+    , m_FFTSetup(frame.m_FFTSetup)
 {
     // Setup frame data
     m_frame.realp = m_realData.data();
@@ -153,16 +153,6 @@ void FFTFrame::cleanup()
     fftSetups = 0;
 }
 
-float* FFTFrame::realData() const
-{
-    return m_frame.realp;
-}
-
-float* FFTFrame::imagData() const
-{
-    return m_frame.imagp;
-}
-
 } // namespace blink
 
 #endif // #if OS(MACOSX)