Mojo: Move public/environment to public/cpp/environment.

mojo/public/cpp/environment/lib/environment.cc

Index: mojo/public/cpp/environment/lib/environment.cc
diff --git a/mojo/public/environment/lib/environment.cc b/mojo/public/cpp/environment/lib/environment.cc
similarity index 78%
rename from mojo/public/environment/lib/environment.cc
rename to mojo/public/cpp/environment/lib/environment.cc
index 71f024f3a69e6579b99eba15c33bafe5e7a0b390..b3148af0b2764ac3e25d517a9209892e8c283bea 100644
--- a/mojo/public/environment/lib/environment.cc
+++ b/mojo/public/cpp/environment/lib/environment.cc
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "mojo/public/environment/environment.h"
+#include "mojo/public/cpp/environment/environment.h"
 
+#include "mojo/public/cpp/environment/lib/buffer_tls_setup.h"
 #include "mojo/public/cpp/utility/run_loop.h"
-#include "mojo/public/environment/lib/buffer_tls_setup.h"
 
 namespace mojo {