Mojo: Implement plumbing to support passing handles over MessagePipes.

mojo/system/dispatcher_unittest.cc

Index: mojo/system/dispatcher_unittest.cc
diff --git a/mojo/system/dispatcher_unittest.cc b/mojo/system/dispatcher_unittest.cc
index a479fcec9e5907a86f41b663219b68404713a652..46bb32980ef8700f10c4e7a0b1096478355a11b8 100644
--- a/mojo/system/dispatcher_unittest.cc
+++ b/mojo/system/dispatcher_unittest.cc
@@ -32,9 +32,9 @@ TEST(DispatcherTest, Basic) {
   scoped_refptr<Dispatcher> d(new TrivialDispatcher());
 
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-            d->WriteMessage(NULL, 0, NULL, 0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+            d->WriteMessage(NULL, 0, NULL, MOJO_WRITE_MESSAGE_FLAG_NONE));
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-            d->ReadMessage(NULL, NULL, NULL, NULL,
+            d->ReadMessage(NULL, NULL, 0, NULL,
                            MOJO_WRITE_MESSAGE_FLAG_NONE));
   Waiter w;
   w.Init();
@@ -47,9 +47,9 @@ TEST(DispatcherTest, Basic) {
   EXPECT_EQ(MOJO_RESULT_OK, d->Close());
 
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-            d->WriteMessage(NULL, 0, NULL, 0, MOJO_WRITE_MESSAGE_FLAG_NONE));
+            d->WriteMessage(NULL, 0, NULL, MOJO_WRITE_MESSAGE_FLAG_NONE));
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-            d->ReadMessage(NULL, NULL, NULL, NULL,
+            d->ReadMessage(NULL, NULL, 0, NULL,
                            MOJO_WRITE_MESSAGE_FLAG_NONE));
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
             d->AddWaiter(&w, MOJO_WAIT_FLAG_EVERYTHING, 0));
@@ -97,12 +97,12 @@ class ThreadSafetyStressThread : public base::SimpleThread {
       }
       case WRITE_MESSAGE:
         EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-                  dispatcher_->WriteMessage(NULL, 0, NULL, 0,
+                  dispatcher_->WriteMessage(NULL, 0, NULL,
                                             MOJO_WRITE_MESSAGE_FLAG_NONE));
         break;
       case READ_MESSAGE:
         EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
-                  dispatcher_->ReadMessage(NULL, NULL, NULL, NULL,
+                  dispatcher_->ReadMessage(NULL, NULL, 0, NULL,
                                            MOJO_WRITE_MESSAGE_FLAG_NONE));
         break;
       case ADD_WAITER: {