Moved Opus-specific payload splitting into AudioDecoderOpus.

webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc

Index: webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
diff --git a/webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc b/webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
index 027fba21eac8dc8207e3de8cb9d9a36ac6b66a0e..7fc8960b39396f5f09c2352eea5896ec6d9dffba 100644
--- a/webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
+++ b/webrtc/modules/audio_coding/codecs/g711/audio_decoder_pcm.cc
@@ -19,10 +19,9 @@ void AudioDecoderPcmU::Reset() {}
 
 std::vector<AudioDecoder::ParseResult> AudioDecoderPcmU::ParsePayload(
     rtc::Buffer* payload,
-    uint32_t timestamp,
-    bool is_primary) {
-  return LegacyEncodedAudioFrame::SplitBySamples(
-      this, payload, timestamp, is_primary, 8 * num_channels_, 8);
+    uint32_t timestamp) {
+  return LegacyEncodedAudioFrame::SplitBySamples(this, payload, timestamp,
+                                                 8 * num_channels_, 8);
 }
 
 int AudioDecoderPcmU::SampleRateHz() const {
@@ -55,10 +54,9 @@ void AudioDecoderPcmA::Reset() {}
 
 std::vector<AudioDecoder::ParseResult> AudioDecoderPcmA::ParsePayload(
     rtc::Buffer* payload,
-    uint32_t timestamp,
-    bool is_primary) {
-  return LegacyEncodedAudioFrame::SplitBySamples(
-      this, payload, timestamp, is_primary, 8 * num_channels_, 8);
+    uint32_t timestamp) {
+  return LegacyEncodedAudioFrame::SplitBySamples(this, payload, timestamp,
+                                                 8 * num_channels_, 8);
 }
 
 int AudioDecoderPcmA::SampleRateHz() const {