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 3e6ad8028e91ea8eedc2bc57d4e93ceb17117f68..be369762a4f30d439fe7a48569e884b6694368f9 100644
--- a/public/platform/Platform.h
+++ b/public/platform/Platform.h
@@ -84,6 +84,7 @@ class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMessagePortChannel;
 class WebMimeRegistry;
+class WebNavigatorConnectProvider;
 class WebNotificationManager;
 class WebPluginListBuilder;
 class WebPrescientNetworking;
@@ -630,6 +631,7 @@ public:
 
     virtual WebGeofencingProvider* geofencingProvider() { return 0; }
 
+
     // Bluetooth ----------------------------------------------------------
 
     // Returns pointer to client owned WebBluetooth implementation.
@@ -640,6 +642,11 @@ public:
 
     virtual WebPushProvider* pushProvider() { return 0; }
 
+
+    // navigator.connect --------------------------------------------------
+
+    virtual WebNavigatorConnectProvider* navigatorConnectProvider() { return 0; }
+
 protected:
     virtual ~Platform() { }
 };