AEC: Moved delay buffer size enums from aec_core.h to aec_core_internal.h

These enums are noly used internally in aec_core.c and it makes more sense to put them in aec_core_internal.h

TESTED=trybots
R=aluebs@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/19379005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5995 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_processing/aec/aec_core.h

@@ -22,17 +22,6 @@
 #define PART_LEN1 (PART_LEN + 1)  // Unique fft coefficients
 #define PART_LEN2 (PART_LEN * 2)  // Length of partition * 2
 
-// Delay estimator constants, used for logging.
-enum {
-  kMaxDelayBlocks = 60
-};
-enum {
-  kLookaheadBlocks = 15
-};
-enum {
-  kHistorySizeBlocks = kMaxDelayBlocks + kLookaheadBlocks
-};
-
 typedef float complex_t[2];
 // For performance reasons, some arrays of complex numbers are replaced by twice
 // as long arrays of float, all the real parts followed by all the imaginary

webrtc/modules/audio_processing/aec/aec_core_internal.h

@@ -26,6 +26,17 @@ enum {
 };
 static const int kNormalNumPartitions = 12;
 
+// Delay estimator constants, used for logging.
+enum {
+  kMaxDelayBlocks = 60
+};
+enum {
+  kLookaheadBlocks = 15
+};
+enum {
+  kHistorySizeBlocks = kMaxDelayBlocks + kLookaheadBlocks
+};
+
 // Extended filter adaptation parameters.
 // TODO(ajm): No narrowband tuning yet.
 static const float kExtendedMu = 0.4f;