Ability to persist RTCCertificate in IndexedDB (enables cloning).

third_party/WebKit/public/platform/WebRTCCertificate.h

Index: third_party/WebKit/public/platform/WebRTCCertificate.h
diff --git a/third_party/WebKit/public/platform/WebRTCCertificate.h b/third_party/WebKit/public/platform/WebRTCCertificate.h
index c9b7a7584144d4d45bacf1992017d16006a339d2..9e067500c00b6b81ff2e255503d6dc803458a080 100644
--- a/third_party/WebKit/public/platform/WebRTCCertificate.h
+++ b/third_party/WebKit/public/platform/WebRTCCertificate.h
@@ -11,6 +11,29 @@
 
 namespace blink {
 
+// Corresponds to |rtc::RTCCertificatePEM| in WebRTC.
+// See |WebRTCCertificate::toPEM| and |WebRTCCertificateGenerator::fromPEM|.
+class WebRTCCertificatePEM {
+public:
+    WebRTCCertificatePEM(std::string privateKey, std::string certificate)
+        : m_privateKey(privateKey), m_certificate(certificate)
+    {
+    }
+
+    const std::string& privateKey() const
+    {
+        return m_privateKey;
+    }
+    const std::string& certificate() const
+    {
+        return m_certificate;
+    }
+
+private:
+    std::string m_privateKey;
+    std::string m_certificate;
+};
+
 // WebRTCCertificate is an interface defining what Blink needs to know about certificates,
 // hiding Chromium and WebRTC layer implementation details. It is possible to create
 // shallow copies of the WebRTCCertificate. When all copies are destroyed, the
@@ -26,11 +49,11 @@ public:
     // data is freed.
     virtual std::unique_ptr<WebRTCCertificate> shallowCopy() const = 0;
 
-    virtual const WebRTCKeyParams& keyParams() const = 0;
-
     // Returns the expiration time in ms relative to epoch, 1970-01-01T00:00:00Z.
     virtual uint64_t expires() const = 0;
-
+    // Creates a PEM strings representation of the certificate. See also
+    // |WebRTCCertificateGenerator::fromPEM|.
+    virtual WebRTCCertificatePEM toPEM() const = 0;
     // Checks if the two certificate objects represent the same certificate value,
     // as should be the case for a clone and the original.
     virtual bool equals(const WebRTCCertificate& other) const = 0;