Enable generation of local host candidate.

public/platform/WebRTCConfiguration.h

Index: public/platform/WebRTCConfiguration.h
diff --git a/public/platform/WebRTCConfiguration.h b/public/platform/WebRTCConfiguration.h
index 9398a49ac9e3c2964e563083400dd4aaf4b24bb2..44a863c09bf29b07e1f6e083ffd08f6d4cb0ccf8 100644
--- a/public/platform/WebRTCConfiguration.h
+++ b/public/platform/WebRTCConfiguration.h
@@ -39,6 +39,7 @@
 namespace blink {
 
 class RTCIceServer;
+class RTCIceServerArray;
 class RTCConfiguration;
 class WebString;
 class WebURL;
@@ -72,6 +73,32 @@ private:
     WebPrivatePtr<RTCIceServer> m_private;
 };
 
+class WebRTCICEServerArray {
+public:
+    WebRTCICEServerArray() {}
+    WebRTCICEServerArray(const WebRTCICEServerArray& other) { assign(other); }
+    WebRTCICEServerArray& operator=(const WebRTCICEServerArray& other)
+    {
+        assign(other);
+        return *this;
+    }
+
+    BLINK_PLATFORM_EXPORT void assign(const WebRTCICEServerArray&);
+
+    BLINK_PLATFORM_EXPORT void reset();
+    bool isNull() const { return m_private.isNull(); }
+
+    BLINK_PLATFORM_EXPORT size_t numberOfServers() const;
+    BLINK_PLATFORM_EXPORT WebRTCICEServer server(size_t index) const;
+
+#if INSIDE_BLINK
+    BLINK_PLATFORM_EXPORT WebRTCICEServerArray(RTCIceServerArray*);
+#endif
+
+private:
+    WebPrivatePtr<RTCIceServerArray> m_private;
+};
+
 enum WebRTCIceTransports {
     WebRTCIceTransportsNone,
     WebRTCIceTransportsRelay,
@@ -106,6 +133,7 @@ public:
     BLINK_PLATFORM_EXPORT void reset();
     bool isNull() const { return m_private.isNull(); }
 
+    // TODO(guoweis): Remove next 2 functions when WebKit rolls into Chromium.
     BLINK_PLATFORM_EXPORT size_t numberOfServers() const;
     BLINK_PLATFORM_EXPORT WebRTCICEServer server(size_t index) const;
 
@@ -114,6 +142,7 @@ public:
     BLINK_PLATFORM_EXPORT WebRTCBundlePolicy bundlePolicy() const;
 
     BLINK_PLATFORM_EXPORT WebRTCRtcpMuxPolicy rtcpMuxPolicy() const;
+    BLINK_PLATFORM_EXPORT WebRTCICEServerArray iceServers() const;
 
 #if INSIDE_BLINK
     BLINK_PLATFORM_EXPORT WebRTCConfiguration(RTCConfiguration*);