Fix modules_unittests on iOS.

webrtc/modules/audio_processing/audio_processing_unittest.cc

 /*
  *  Copyright (c) 2012 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 272 matching lines @@
   if (temp_filenames[filename].empty())
     temp_filenames[filename] = test::TempFilename(test::OutputPath(), filename);
   return temp_filenames[filename];
 }
 
 void ClearTempFiles() {
   for (auto& kv : temp_filenames)
     remove(kv.second.c_str());
 }
 
-void OpenFileAndReadMessage(const std::string filename,
+void OpenFileAndReadMessage(std::string filename,
                             ::google::protobuf::MessageLite* msg) {
   FILE* file = fopen(filename.c_str(), "rb");
   ASSERT_TRUE(file != NULL);
   ReadMessageFromFile(file, msg);
   fclose(file);
 }
 
 // Reads a 10 ms chunk of int16 interleaved audio from the given (assumed
 // stereo) file, converts to deinterleaved float (optionally downmixing) and
 // returns the result in |cb|. Returns false if the file ended (or on error) and
@@ skipping 90 matching lines @@
   std::unique_ptr<ChannelBuffer<float> > revfloat_cb_;
   int output_sample_rate_hz_;
   size_t num_output_channels_;
   FILE* far_file_;
   FILE* near_file_;
   FILE* out_file_;
 };
 
 ApmTest::ApmTest()
     : output_path_(test::OutputPath()),
+#ifndef WEBRTC_IOS
       ref_path_(test::ProjectRootPath() + "data/audio_processing/"),
+#else
+      // On iOS test data is flat in the project root dir
+      ref_path_(test::ProjectRootPath()),
+#endif
 #if defined(WEBRTC_AUDIOPROC_FIXED_PROFILE)
       ref_filename_(ref_path_ + "output_data_fixed.pb"),
 #elif defined(WEBRTC_AUDIOPROC_FLOAT_PROFILE)
 #if defined(WEBRTC_MAC)
       // A different file for Mac is needed because on this platform the AEC
       // constant |kFixedDelayMs| value is 20 and not 50 as it is on the rest.
       ref_filename_(ref_path_ + "output_data_mac.pb"),
 #else
       ref_filename_(ref_path_ + "output_data_float.pb"),
 #endif
@@ skipping 2353 matching lines @@
                     std::tr1::make_tuple(16000, 32000, 48000, 32000, 25, 35),
                     std::tr1::make_tuple(16000, 32000, 32000, 32000, 25, 0),
                     std::tr1::make_tuple(16000, 32000, 16000, 32000, 25, 20),
                     std::tr1::make_tuple(16000, 16000, 48000, 16000, 35, 20),
                     std::tr1::make_tuple(16000, 16000, 32000, 16000, 35, 20),
                     std::tr1::make_tuple(16000, 16000, 16000, 16000, 0, 0)));
 #endif
 
 }  // namespace
 }  // namespace webrtc