Change the canonical way to include the C bindings headers to <mojo/bindings/*.h>.

mojo/public/c/lib/bindings/map.c

Index: mojo/public/c/lib/bindings/map.c
diff --git a/mojo/public/c/bindings/lib/map.c b/mojo/public/c/lib/bindings/map.c
similarity index 96%
rename from mojo/public/c/bindings/lib/map.c
rename to mojo/public/c/lib/bindings/map.c
index 19faa8f8ff6640a6263c47547b2b5282d0cba3bc..86bc3d2c9f589a3e6cdda45d5c8e9719b0bbb4e4 100644
--- a/mojo/public/c/bindings/lib/map.c
+++ b/mojo/public/c/lib/bindings/map.c
@@ -2,7 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "mojo/public/c/bindings/map.h"
+#include <mojo/bindings/map.h>
+
+#include <mojo/macros.h>
 
 struct MojomMapLayout {
   struct MojomStructHeader header_;