Fix bug in DTMF generation where events with level > 36 would be ignored.

webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h

Index: webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h
diff --git a/webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h b/webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h
index 36d902ad3fa20911cd4698baed467de13bb9ae9e..9abd03eb09c159dfd7130e8ba376ffc485bc3b3a 100644
--- a/webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h
+++ b/webrtc/modules/audio_coding/neteq/dtmf_tone_generator.h
@@ -38,7 +38,7 @@ class DtmfToneGenerator {
   static const int kCoeff2[4][16];  // 2nd oscillator model coefficient table.
   static const int kInitValue1[4][16];  // Initialization for 1st oscillator.
   static const int kInitValue2[4][16];  // Initialization for 2nd oscillator.
-  static const int kAmplitude[37];  // Amplitude for 0 through -36 dBm0.
+  static const int kAmplitude[64];  // Amplitude for 0 through -63 dBm0.
   static const int16_t kAmpMultiplier = 23171;  // 3 dB attenuation (in Q15).
 
   bool initialized_;            // True if generator is initialized properly.