Move all core files in //components/sessions into core/ subdir

components/sessions/core/session_command.h

Index: components/sessions/core/session_command.h
diff --git a/components/sessions/session_command.h b/components/sessions/core/session_command.h
similarity index 91%
rename from components/sessions/session_command.h
rename to components/sessions/core/session_command.h
index a5a5969a7d12025e09ef9737443e0b7dd2c24e4c..5ba7b42d2301a6f685e8a52b134b677c561c64b5 100644
--- a/components/sessions/session_command.h
+++ b/components/sessions/core/session_command.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_SESSIONS_SESSION_COMMAND_H_
-#define COMPONENTS_SESSIONS_SESSION_COMMAND_H_
+#ifndef COMPONENTS_SESSIONS_CORE_SESSION_COMMAND_H_
+#define COMPONENTS_SESSIONS_CORE_SESSION_COMMAND_H_
 
 #include <string>
 
 #include "base/basictypes.h"
-#include "components/sessions/sessions_export.h"
+#include "components/sessions/core/sessions_export.h"
 
 namespace base {
 class Pickle;
@@ -72,4 +72,4 @@ class SESSIONS_EXPORT SessionCommand {
 
 }  // namespace sessions
 
-#endif  // COMPONENTS_SESSIONS_SESSION_COMMAND_H_
+#endif  // COMPONENTS_SESSIONS_CORE_SESSION_COMMAND_H_