Expose navigator.connect client side API in blink.

public/platform/Platform.h

Index: public/platform/Platform.h
diff --git a/public/platform/Platform.h b/public/platform/Platform.h
index a81c8e166521e244a0e8ad767327c877d6fd7a94..c64b615fa21c11fa03ae2c3600cfd6335322125a 100644
--- a/public/platform/Platform.h
+++ b/public/platform/Platform.h
@@ -86,6 +86,7 @@ class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMessagePortChannel;
 class WebMimeRegistry;
+class WebNavigatorConnectProvider;
 class WebNotificationManager;
 class WebPluginListBuilder;
 class WebPrescientNetworking;
@@ -632,6 +633,7 @@ public:
 
     virtual WebGeofencingProvider* geofencingProvider() { return 0; }
 
+
     // Bluetooth ----------------------------------------------------------
 
     // Returns pointer to client owned WebBluetooth implementation.
@@ -642,6 +644,11 @@ public:
 
     virtual WebPushProvider* pushProvider() { return 0; }
 
+
+    // navigator.connect --------------------------------------------------
+
+    virtual WebNavigatorConnectProvider* navigatorConnectProvider() { return 0; }
+
 protected:
     virtual ~Platform() { }
 };