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

mojo/public/cpp/environment/buffer_tls.h

Index: mojo/public/cpp/environment/buffer_tls.h
diff --git a/mojo/public/environment/buffer_tls.h b/mojo/public/cpp/environment/buffer_tls.h
similarity index 72%
rename from mojo/public/environment/buffer_tls.h
rename to mojo/public/cpp/environment/buffer_tls.h
index 60929e9413b9fdedc8d2c24735bf717d08d81c86..42cf82609f09ea508b4330711ac4c92f9368101a 100644
--- a/mojo/public/environment/buffer_tls.h
+++ b/mojo/public/cpp/environment/buffer_tls.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_PUBLIC_ENVIRONMENT_BUFFER_TLS_H_
-#define MOJO_PUBLIC_ENVIRONMENT_BUFFER_TLS_H_
+#ifndef MOJO_PUBLIC_CPP_ENVIRONMENT_BUFFER_TLS_H_
+#define MOJO_PUBLIC_CPP_ENVIRONMENT_BUFFER_TLS_H_
 
 namespace mojo {
 class Buffer;
@@ -17,4 +17,4 @@ Buffer* SetCurrentBuffer(Buffer* buffer);
 }  // namespace internal
 }  // namespace mojo
 
-#endif  // MOJO_PUBLIC_ENVIRONMENT_BUFFER_TLS_H_
+#endif  // MOJO_PUBLIC_CPP_ENVIRONMENT_BUFFER_TLS_H_