Remove typedefs.h from webrtc/ root (part 1)

webrtc/common_audio/resampler/sinc_resampler.h

Index: webrtc/common_audio/resampler/sinc_resampler.h
diff --git a/webrtc/common_audio/resampler/sinc_resampler.h b/webrtc/common_audio/resampler/sinc_resampler.h
index fa92163f861ca3b6824da46ed48de19927471036..50059e53c7bf66c60b2a9ab07e23691ab80b59aa 100644
--- a/webrtc/common_audio/resampler/sinc_resampler.h
+++ b/webrtc/common_audio/resampler/sinc_resampler.h
@@ -149,7 +149,7 @@ class SincResampler {
   // TODO(ajm): Move to using a global static which must only be initialized
   // once by the user. We're not doing this initially, because we don't have
   // e.g. a LazyInstance helper in webrtc.
-#if defined(WEBRTC_CPU_DETECTION)
+#if (defined(WEBRTC_ARCH_X86_FAMILY) && !defined(__SSE2__))
   typedef float (*ConvolveProc)(const float*, const float*, const float*,
                                 double);
   ConvolveProc convolve_proc_;