Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

mojo/edk/system/test_utils.h

Index: mojo/edk/system/test_utils.h
diff --git a/third_party/mojo/src/mojo/edk/system/test_utils.h b/mojo/edk/system/test_utils.h
similarity index 95%
copy from third_party/mojo/src/mojo/edk/system/test_utils.h
copy to mojo/edk/system/test_utils.h
index 144e07bf0448ec175d25c796b174516c609b7cd7..6f8a96d637c47cc075b1ba9a32ec4b9e675979a0 100644
--- a/third_party/mojo/src/mojo/edk/system/test_utils.h
+++ b/mojo/edk/system/test_utils.h
@@ -25,7 +25,7 @@ MojoDeadline EpsilonDeadline();
 // the order of 100 ms.)
 MojoDeadline TinyDeadline();
 
-// |TestTimeouts::action_timeout()|, as a |MojoDeadline|. (Expect this to be on
+// |TestTimeouts::action_timeout()|, as a |MojoDeadline|.(Expect this to be on
 // the order of 10 s.)
 MojoDeadline ActionDeadline();