Renamed the test::BitExactFrame method to test::VectorDifferenceBounded.

webrtc/modules/audio_processing/echo_cancellation_unittest.cc

Index: webrtc/modules/audio_processing/echo_cancellation_unittest.cc
diff --git a/webrtc/modules/audio_processing/echo_cancellation_unittest.cc b/webrtc/modules/audio_processing/echo_cancellation_unittest.cc
index ccf80f3ff564bbfccbf151bd9d38a9ff80225bb0..f09e23b3c7a30d83c88702aa5a05f9aab4dff237 100644
--- a/webrtc/modules/audio_processing/echo_cancellation_unittest.cc
+++ b/webrtc/modules/audio_processing/echo_cancellation_unittest.cc
@@ -125,10 +125,10 @@ void RunBitexactnessTest(int sample_rate_hz,
   // preceeding frames as testvectors. As the algorithm being tested has a
   // memory, testing only the last frame implicitly also tests the preceeding
   // frames.
-  const float kTolerance = 1.0f / 32768.0f;
-  EXPECT_TRUE(test::BitExactFrame(
+  const float kElementErrorBound = 1.0f / 32768.0f;
+  EXPECT_TRUE(test::StackedFrameDifferenceBounded(
       capture_config.num_frames(), capture_config.num_channels(),
-      output_reference, capture_output, kTolerance));
+      output_reference, capture_output, kElementErrorBound));
 }
 
 const bool kStreamHasEchoReference = false;