Reland of TransportController refactoring.

webrtc/p2p/base/dtlstransport.h

Index: webrtc/p2p/base/dtlstransport.h
diff --git a/webrtc/p2p/base/dtlstransport.h b/webrtc/p2p/base/dtlstransport.h
index 9559c1e6d2ec729984c2e1ca946a60094477e7bb..c448eb16fc773ee8e014fbb9e700469f1ec4c189 100644
--- a/webrtc/p2p/base/dtlstransport.h
+++ b/webrtc/p2p/base/dtlstransport.h
@@ -11,7 +11,6 @@
 #ifndef WEBRTC_P2P_BASE_DTLSTRANSPORT_H_
 #define WEBRTC_P2P_BASE_DTLSTRANSPORT_H_
 
-#include "webrtc/base/checks.h"
 #include "webrtc/p2p/base/dtlstransportchannel.h"
 #include "webrtc/p2p/base/transport.h"
 
@@ -23,33 +22,31 @@
 
 class PortAllocator;
 
-// Base should be a descendant of cricket::Transport
-// TODO(hbos): Add appropriate RTC_DCHECK thread checks to all methods.
+// Base should be a descendant of cricket::Transport and have a constructor
+// that takes a transport name and PortAllocator.
+//
+// Everything in this class should be called on the worker thread.
 template<class Base>
 class DtlsTransport : public Base {
  public:
-  DtlsTransport(rtc::Thread* signaling_thread,
-                rtc::Thread* worker_thread,
-                const std::string& content_name,
+  DtlsTransport(const std::string& name,
                 PortAllocator* allocator,
                 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate)
-      : Base(signaling_thread, worker_thread, content_name, allocator),
+      : Base(name, allocator),
         certificate_(certificate),
         secure_role_(rtc::SSL_CLIENT),
-        ssl_max_version_(rtc::SSL_PROTOCOL_DTLS_10) {
-  }
+        ssl_max_version_(rtc::SSL_PROTOCOL_DTLS_10) {}
 
   ~DtlsTransport() {
     Base::DestroyAllChannels();
   }
-  void SetCertificate_w(
+
+  void SetLocalCertificate(
       const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
     certificate_ = certificate;
   }
-  bool GetCertificate_w(
+  bool GetLocalCertificate(
       rtc::scoped_refptr<rtc::RTCCertificate>* certificate) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
     if (!certificate_)
       return false;
 
@@ -57,15 +54,13 @@
     return true;
   }
 
-  bool SetSslMaxProtocolVersion_w(rtc::SSLProtocolVersion version) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
+  bool SetSslMaxProtocolVersion(rtc::SSLProtocolVersion version) override {
     ssl_max_version_ = version;
     return true;
   }
 
-  bool ApplyLocalTransportDescription_w(TransportChannelImpl* channel,
-                                        std::string* error_desc) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
+  bool ApplyLocalTransportDescription(TransportChannelImpl* channel,
+                                      std::string* error_desc) override {
     rtc::SSLFingerprint* local_fp =
         Base::local_description()->identity_fingerprint.get();
 
@@ -98,12 +93,11 @@
     }
 
     // Apply the description in the base class.
-    return Base::ApplyLocalTransportDescription_w(channel, error_desc);
-  }
-
-  bool NegotiateTransportDescription_w(ContentAction local_role,
-                                       std::string* error_desc) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
+    return Base::ApplyLocalTransportDescription(channel, error_desc);
+  }
+
+  bool NegotiateTransportDescription(ContentAction local_role,
+                                     std::string* error_desc) override {
     if (!Base::local_description() || !Base::remote_description()) {
       const std::string msg = "Local and Remote description must be set before "
                               "transport descriptions are negotiated";
@@ -200,7 +194,7 @@
     }
 
     // Now run the negotiation for the base class.
-    return Base::NegotiateTransportDescription_w(local_role, error_desc);
+    return Base::NegotiateTransportDescription(local_role, error_desc);
   }
 
   DtlsTransportChannelWrapper* CreateTransportChannel(int component) override {
@@ -219,18 +213,15 @@
     Base::DestroyTransportChannel(base_channel);
   }
 
-  bool GetSslRole_w(rtc::SSLRole* ssl_role) const override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
+  bool GetSslRole(rtc::SSLRole* ssl_role) const override {
     ASSERT(ssl_role != NULL);
     *ssl_role = secure_role_;
     return true;
   }
 
  private:
-  bool ApplyNegotiatedTransportDescription_w(
-      TransportChannelImpl* channel,
-      std::string* error_desc) override {
-    RTC_DCHECK(Base::worker_thread()->IsCurrent());
+  bool ApplyNegotiatedTransportDescription(TransportChannelImpl* channel,
+                                           std::string* error_desc) override {
     // Set ssl role. Role must be set before fingerprint is applied, which
     // initiates DTLS setup.
     if (!channel->SetSslRole(secure_role_)) {
@@ -245,7 +236,7 @@
       return BadTransportDescription("Failed to apply remote fingerprint.",
                                      error_desc);
     }
-    return Base::ApplyNegotiatedTransportDescription_w(channel, error_desc);
+    return Base::ApplyNegotiatedTransportDescription(channel, error_desc);
   }
 
   rtc::scoped_refptr<rtc::RTCCertificate> certificate_;