Fix warning when closing a proxy that passed its handle.

mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java

Index: mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
diff --git a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
index 38d8114fc1ccb47a5e0dac12d31c5a1e7d313efd..f1d892d2e37ae740dc7a9e09c53ace967bd19f36 100644
--- a/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
+++ b/mojo/public/java/bindings/src/org/chromium/mojo/bindings/Interface.java
@@ -17,9 +17,12 @@ import java.io.Closeable;
  * Base class for mojo generated interfaces.
  */
 public interface Interface extends ConnectionErrorHandler, Closeable {
-
     /**
-     * The close method is called when the connection to the interface is closed.
+     * If the interface is an implementation, the close method is called when the connection to the
+     * implementation is closed.
+     * <p>
+     * If the interface is a proxy, the close method closes the connection to the implementation.
+     * This method must be called before the proxy is released.
      *
      * @see java.io.Closeable#close()
      */