Remove UpdateSsrcs from EncoderStateFeedback.

webrtc/video_engine/encoder_state_feedback.cc

Index: webrtc/video_engine/encoder_state_feedback.cc
diff --git a/webrtc/video_engine/encoder_state_feedback.cc b/webrtc/video_engine/encoder_state_feedback.cc
index 4d9db5847d860431136a51ad07094f646dd1deb0..55a0c4394660876d28c43b0e2d204665c042b311 100644
--- a/webrtc/video_engine/encoder_state_feedback.cc
+++ b/webrtc/video_engine/encoder_state_feedback.cc
@@ -54,34 +54,16 @@ EncoderStateFeedback::~EncoderStateFeedback() {
   assert(encoders_.empty());
 }
 
-void EncoderStateFeedback::UpdateSsrcs(const std::vector<uint32_t>& ssrcs,
-                                       ViEEncoder* encoder) {
+void EncoderStateFeedback::AddEncoder(const std::vector<uint32_t>& ssrcs,
+                                      ViEEncoder* encoder) {
+  DCHECK(!ssrcs.empty());
   CriticalSectionScoped lock(crit_.get());
-  SsrcEncoderMap::iterator it = encoders_.begin();
-  while (it != encoders_.end()) {
-    if (it->second == encoder) {
-      encoders_.erase(it++);
-    } else {
-      ++it;
-    }
-  }
   for (uint32_t ssrc : ssrcs) {
     DCHECK(encoders_.find(ssrc) == encoders_.end());
     encoders_[ssrc] = encoder;
   }
 }
 
-bool EncoderStateFeedback::AddEncoder(uint32_t ssrc, ViEEncoder* encoder)  {
-  CriticalSectionScoped lock(crit_.get());
-  if (encoders_.find(ssrc) != encoders_.end()) {
-    // Two encoders must not have the same ssrc.
-    return false;
-  }
-
-  encoders_[ssrc] = encoder;
-  return true;
-}
-
 void EncoderStateFeedback::RemoveEncoder(const ViEEncoder* encoder)  {
   CriticalSectionScoped lock(crit_.get());
   SsrcEncoderMap::iterator it = encoders_.begin();