DtlsIdentityStoreInterface added.

talk/app/webrtc/dtlsidentitystore.h

Index: talk/app/webrtc/dtlsidentitystore.h
diff --git a/talk/app/webrtc/dtlsidentitystore.h b/talk/app/webrtc/dtlsidentitystore.h
index b2a797462fbe43b747070db0223fca07775aae05..b655a7d1b29f7fc7676685e37a495d3792c87bd3 100644
--- a/talk/app/webrtc/dtlsidentitystore.h
+++ b/talk/app/webrtc/dtlsidentitystore.h
@@ -31,17 +31,64 @@
 #include <queue>
 #include <string>
 
-#include "talk/app/webrtc/peerconnectioninterface.h"
 #include "webrtc/base/messagehandler.h"
 #include "webrtc/base/messagequeue.h"
+#include "webrtc/base/refcount.h"
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/base/scoped_ref_ptr.h"
+#include "webrtc/base/sslidentity.h"
+#include "webrtc/base/thread.h"
 
 namespace webrtc {
-class DTLSIdentityRequestObserver;
 class SSLIdentity;
 class Thread;
 
+// Used to receive callbacks of DTLS identity requests.
+class DTLSIdentityRequestObserver : public rtc::RefCountInterface {
+ public:
+  virtual void OnFailure(int error) = 0;
+  // TODO(jiayl): Unify the OnSuccess method once Chrome code is updated.
+  virtual void OnSuccess(const std::string& der_cert,
+                         const std::string& der_private_key) = 0;
+  // |identity| is a scoped_ptr because rtc::SSLIdentity is not copyable and the
+  // client has to get the ownership of the object to make use of it.
+  virtual void OnSuccessWithIdentityObj(
+      rtc::scoped_ptr<rtc::SSLIdentity> identity) = 0;
+
+ protected:
+  virtual ~DTLSIdentityRequestObserver() {}
+};
+
+// TODO(hbos): To replace DTLSIdentityRequestObserver.
+// Used to receive callbacks of DTLS identity requests.
+class DtlsIdentityRequestObserver : public rtc::RefCountInterface {
+ public:
+  virtual void OnFailure(int error) = 0;
+  // TODO(hbos): Unify the OnSuccess method once Chrome code is updated.
+  virtual void OnSuccess(const std::string& der_cert,
+                         const std::string& der_private_key) = 0;
+  // |identity| is a scoped_ptr because rtc::SSLIdentity is not copyable and the
+  // client has to get the ownership of the object to make use of it.
+  virtual void OnSuccess(rtc::scoped_ptr<rtc::SSLIdentity> identity) = 0;
+
+ protected:
+  virtual ~DtlsIdentityRequestObserver() {}
+};
+
+// TODO(hbos): To be implemented.
+// This interface defines an in-memory DTLS identity store, which generates DTLS
+// identities.
+// APIs calls must be made on the signaling thread and the callbacks are also
+// called on the signaling thread.
+class DtlsIdentityStoreInterface {
+ public:
+  virtual ~DtlsIdentityStoreInterface() { }
+
+  virtual void RequestIdentity(
+      rtc::KeyType key_type,
+      const rtc::scoped_refptr<DtlsIdentityRequestObserver>& observer) = 0;
+};
+
 // This class implements an in-memory DTLS identity store, which generates the
 // DTLS identity on the worker thread.
 // APIs calls must be made on the signaling thread and the callbacks are also