Mojo: Move mojo/public/system/core_cpp.h to mojo/cpp/public/system/core.h.

Also begin rearranging tests. (I'm deferring moving macros_unittest.cc
until after I split macros.h.)

[email protected]

Review URL: https://codereview.chromium.org/214753004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@260048 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/mojo/common/message_pump_mojo.h b/mojo/common/message_pump_mojo.h
index b5b6443..cc21565 100644
--- a/mojo/common/message_pump_mojo.h
+++ b/mojo/common/message_pump_mojo.h
@@ -11,7 +11,7 @@
 #include "base/message_loop/message_pump.h"
 #include "base/time/time.h"
 #include "mojo/common/mojo_common_export.h"
-#include "mojo/public/system/core_cpp.h"
+#include "mojo/public/cpp/system/core.h"
 
 namespace mojo {
 namespace common {