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

webrtc/common_audio/resampler/sinc_resampler.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 131 matching lines @@
   std::unique_ptr<float[], AlignedFreeDeleter> kernel_pre_sinc_storage_;
   std::unique_ptr<float[], AlignedFreeDeleter> kernel_window_storage_;
 
   // Data from the source is copied into this buffer for each processing pass.
   std::unique_ptr<float[], AlignedFreeDeleter> input_buffer_;
 
   // Stores the runtime selection of which Convolve function to use.
   // 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_;
 #endif
 
   // Pointers to the various regions inside |input_buffer_|.  See the diagram at
   // the top of the .cc file for more information.
   float* r0_;
   float* const r1_;
   float* const r2_;
   float* r3_;
   float* r4_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(SincResampler);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_COMMON_AUDIO_RESAMPLER_SINC_RESAMPLER_H_