ipc: Simplify the magic required to create IPC message headers.This gets rid of having to include the files in a magic place because of xcode dependency issues, and just makes it simpler to create new IPC message classes.  It also gets rid of including the X_messages_internal.h file multiple times, which simplifies things and should make the build a little faster.

In a future change, I will remove the "internal.h" files since they're no longer needed.
Review URL: http://codereview.chromium.org/5526008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68664 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 21fa3a157739a857f1882072179f1bd3d978c368
diff --git a/ipc/ipc_sync_channel_unittest.cc b/ipc/ipc_sync_channel_unittest.cc
index bf21917..5617146 100644
--- a/ipc/ipc_sync_channel_unittest.cc
+++ b/ipc/ipc_sync_channel_unittest.cc
@@ -20,16 +20,9 @@
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sync_channel.h"
 #include "ipc/ipc_sync_message_filter.h"
+#include "ipc/ipc_sync_message_unittest.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-
-#define MESSAGES_INTERNAL_FILE "ipc/ipc_sync_message_unittest.h"
-#include "ipc/ipc_message_macros.h"
-
-// Definition of IPC Messages used for this test.
-#define MESSAGES_INTERNAL_IMPL_FILE "ipc/ipc_sync_message_unittest.h"
-#include "ipc/ipc_message_impl_macros.h"
-
 using namespace IPC;
 using base::WaitableEvent;