Update code to upstream revision r789

Very minor changes.

configure.ac

 # Revision changelog (version - date, svn rev. from upstream that was merged)
-#    0.1 - 19 Oct 2011, r767
+#    0.1 - 21 Oct 2011, r789
 AC_INIT([webrtc-audio-processing], [0.1])
 AM_INIT_AUTOMAKE([tar-ustar])
 

src/modules/audio_processing/aec/echo_cancellation.c

@@ -736,6 +736,7 @@ int WebRtcAec_GetDelayMetrics(void* handle, int* median, int* std) {
   int delay_values = 0;
   int num_delay_values = 0;
   int my_median = 0;
+  const int kMsPerBlock = (PART_LEN * 1000) / self->splitSampFreq;
   float l1_norm = 0;
 
   if (self == NULL) {
@@ -779,13 +780,13 @@ int WebRtcAec_GetDelayMetrics(void* handle, int* median, int* std) {
       break;
     }
   }
-  *median = my_median;
+  *median = my_median * kMsPerBlock;
 
   // Calculate the L1 norm, with median value as central moment
   for (i = 0; i < kMaxDelay; i++) {
     l1_norm += (float) (fabs(i - my_median) * self->aec->delay_histogram[i]);
   }
-  *std = (int) (l1_norm / (float) num_delay_values + 0.5f);
+  *std = (int) (l1_norm / (float) num_delay_values + 0.5f) * kMsPerBlock;
 
   // Reset histogram
   memset(self->aec->delay_histogram, 0, sizeof(self->aec->delay_histogram));

src/typedefs.h

@@ -28,12 +28,12 @@
 //   - Do we really support PowerPC? Probably not. Remove WEBRTC_MAC_INTEL
 //     from build/common.gypi as well.
 #if defined(WIN32)
-    // Windows & Windows Mobile
+    // Windows & Windows Mobile.
     #if !defined(WEBRTC_TARGET_PC)
         #define WEBRTC_TARGET_PC
     #endif
 #elif defined(__APPLE__)
-    // Mac OS X
+    // Mac OS X.
     #if defined(__LITTLE_ENDIAN__ )
         #if !defined(WEBRTC_TARGET_MAC_INTEL)
             #define WEBRTC_TARGET_MAC_INTEL