Negotiate the same SRTP crypto suites for every DTLS association formed.

webrtc/pc/channelmanager.h

Index: webrtc/pc/channelmanager.h
diff --git a/webrtc/pc/channelmanager.h b/webrtc/pc/channelmanager.h
index b763fa14fc17d133d1a0edf8dd357ac0312de9bc..e62ad6fcd679d885695879005dc2416707471404 100644
--- a/webrtc/pc/channelmanager.h
+++ b/webrtc/pc/channelmanager.h
@@ -146,10 +146,6 @@ class ChannelManager {
   // engines will start offering an RTX codec. Must be called before Init().
   bool SetVideoRtxEnabled(bool enable);
 
-  // Define crypto options to set on newly created channels. Doesn't change
-  // options on already created channels.
-  bool SetCryptoOptions(const rtc::CryptoOptions& crypto_options);
-
   // Starts/stops the local microphone and enables polling of the input level.
   bool capturing() const { return capturing_; }
 
@@ -175,7 +171,6 @@ class ChannelManager {
   bool InitMediaEngine_w();
   void DestructorDeletes_w();
   void Terminate_w();
-  bool SetCryptoOptions_w(const rtc::CryptoOptions& crypto_options);
   VoiceChannel* CreateVoiceChannel_w(
       webrtc::MediaControllerInterface* media_controller,
       DtlsTransportInternal* rtp_dtls_transport,