[mojo-edk] Add support for transferring mach ports.

mojo/edk/embedder/platform_handle.cc

Index: mojo/edk/embedder/platform_handle.cc
diff --git a/mojo/edk/embedder/platform_handle.cc b/mojo/edk/embedder/platform_handle.cc
index 62dc850731f087934b7d875f83669bf40cddd59f..c4dae3d36d0285e87e7628b896e04ec3b0e44476 100644
--- a/mojo/edk/embedder/platform_handle.cc
+++ b/mojo/edk/embedder/platform_handle.cc
@@ -30,9 +30,9 @@ void PlatformHandle::CloseIfNecessary() {
   }
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   else {
-     kern_return_t rv = mach_port_deallocate(mach_task_self(), port);
-     DPCHECK(rv == KERN_SUCCESS);
-     port = MACH_PORT_NULL;
+    kern_return_t rv = mach_port_deallocate(mach_task_self(), port);
+    DPCHECK(rv == KERN_SUCCESS);
+    port = MACH_PORT_NULL;
   }
 #endif  // defined(OS_MACOSX) && !defined(OS_IOS)
 #elif defined(OS_WIN)