ipc: Remove basictypes.h includes.

* macros.h replaces it for the usage of DISALLOW_X macros.

BUG=138542
TEST=ipc_unittests
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Review URL: https://codereview.chromium.org/1342153003

Cr-Commit-Position: refs/heads/master@{#349081}
diff --git a/ipc/ipc_sync_message_unittest.cc b/ipc/ipc_sync_message_unittest.cc
index d170b7f..2e3e324 100644
--- a/ipc/ipc_sync_message_unittest.cc
+++ b/ipc/ipc_sync_message_unittest.cc
@@ -6,12 +6,9 @@
 // works.  This ensures that the macros and templates were defined correctly.
 // Doesn't test the IPC channel mechanism.
 
-#include <string.h>
-
-#include "base/basictypes.h"
+#include "base/logging.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_message_utils.h"
-#include "base/logging.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #define IPC_MESSAGE_IMPL