Mojo: Implement local passing of MessagePipes.

mojo/system/simple_dispatcher_unittest.cc

Index: mojo/system/simple_dispatcher_unittest.cc
diff --git a/mojo/system/simple_dispatcher_unittest.cc b/mojo/system/simple_dispatcher_unittest.cc
index 9822f95292054cc1a89cb14a020ba400c07725c7..96d8e26287a5fb85c70e39d8579ca46cef979d7f 100644
--- a/mojo/system/simple_dispatcher_unittest.cc
+++ b/mojo/system/simple_dispatcher_unittest.cc
@@ -61,6 +61,14 @@ class MockSimpleDispatcher : public SimpleDispatcher {
   friend class base::RefCountedThreadSafe<MockSimpleDispatcher>;
   virtual ~MockSimpleDispatcher() {}
 
+  virtual scoped_refptr<Dispatcher>
+      CreateEquivalentDispatcherAndCloseImplNoLock() OVERRIDE {
+    scoped_refptr<MockSimpleDispatcher> rv(new MockSimpleDispatcher());
+    rv->satisfied_flags_ = satisfied_flags_;
+    rv->satisfiable_flags_ = satisfiable_flags_;
+    return scoped_refptr<Dispatcher>(rv.get());
+  }
+
   // |SimpleDispatcher| implementation:
   virtual MojoWaitFlags SatisfiedFlagsNoLock() const OVERRIDE {
     lock().AssertAcquired();