Modify audio_processing_unittest to use ResourcePath instead of ProjectRootPath.

webrtc/modules/audio_processing/audio_processing_unittest.cc

Index: webrtc/modules/audio_processing/audio_processing_unittest.cc
diff --git a/webrtc/modules/audio_processing/audio_processing_unittest.cc b/webrtc/modules/audio_processing/audio_processing_unittest.cc
index fb2f214bedaf671468a8bb4376122137140966b7..139aa9daafa534d29a11e2e8bf53832609f0e24d 100644
--- a/webrtc/modules/audio_processing/audio_processing_unittest.cc
+++ b/webrtc/modules/audio_processing/audio_processing_unittest.cc
@@ -391,7 +391,6 @@ class ApmTest : public ::testing::Test {
   void VerifyDebugDumpTest(Format format);
 
   const std::string output_path_;
-  const std::string ref_path_;
   const std::string ref_filename_;
   std::unique_ptr<AudioProcessing> apm_;
   AudioFrame* frame_;
@@ -407,21 +406,18 @@ class ApmTest : public ::testing::Test {
 
 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"),
+      ref_filename_(test::ResourcePath("audio_processing/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"),
+      ref_filename_(test::ResourcePath("audio_processing/output_data_mac",
+                                       "pb")),
 #else
-      ref_filename_(ref_path_ + "output_data_float.pb"),
+      ref_filename_(test::ResourcePath("audio_processing/output_data_float",
+                                       "pb")),
 #endif
 #endif
       frame_(NULL),