Consistently use setters to set event handlers in native APIs.

runtime/bin/socket.dart

Index: runtime/bin/socket.dart
diff --git a/runtime/bin/socket.dart b/runtime/bin/socket.dart
index 5d882b4421d240e059809b0318f8356cdc51c59c..b807c9691455657fadf5fe0180bbda9ada9e3ddd 100644
--- a/runtime/bin/socket.dart
+++ b/runtime/bin/socket.dart
@@ -18,12 +18,12 @@ interface ServerSocket factory _ServerSocket {
    * The connection handler gets executed when there are incoming connections
    * on the socket.
    */
-  void setConnectionHandler(void callback());
+  void set connectionHandler(void callback());
 
   /*
    * The error handler gets executed when a socket error occurs.
    */
-  void setErrorHandler(void callback());
+  void set errorHandler(void callback());
 
   /*
    * Returns the port used by this socket.
@@ -71,28 +71,28 @@ interface Socket factory _Socket {
    * The connect handler gets executed when connection to a given host
    * succeeded.
    */
-  void setConnectHandler(void callback());
+  void set connectHandler(void callback());
 
   /*
    * The data handler gets executed when data becomes available at the socket.
    */
-  void setDataHandler(void callback());
+  void set dataHandler(void callback());
 
   /*
    * The write handler gets executed when the socket becomes available for
    * writing.
    */
-  void setWriteHandler(void callback());
+  void set writeHandler(void callback());
 
   /*
    * The error handler gets executed when a socket error occurs.
    */
-  void setErrorHandler(void callback());
+  void set errorHandler(void callback());
 
   /*
    * The close handler gets executed when the socket was closed.
    */
-  void setCloseHandler(void callback());
+  void set closeHandler(void callback());
 
   /*
    * Returns input stream to the socket.