Moves TabNavigation into components/sessions and renames

chrome/browser/sessions/session_command.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SESSIONS_SESSION_COMMAND_H_
 #define CHROME_BROWSER_SESSIONS_SESSION_COMMAND_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 
 class Pickle;
 
 // SessionCommand contains a command id and arbitrary chunk of data. The id
 // and chunk of data are specific to the service creating them.
 //
 // Both TabRestoreService and SessionService use SessionCommands to represent
 // state on disk.
 //
 // There are two ways to create a SessionCommand:
 // . Specificy the size of the data block to create. This is useful for
 //   commands that have a fixed size.
 // . From a pickle, this is useful for commands whose length varies.
 class SessionCommand {
  public:
   // These get written to disk, so we define types for them.
   // Type for the identifier.
   typedef uint8 id_type;
+
   // Type for writing the size.
   typedef uint16 size_type;
 
   // Creates a session command with the specified id. This allocates a buffer
   // of size |size| that must be filled via contents().
   SessionCommand(id_type id, size_type size);
 
   // Convenience constructor that creates a session command with the specified
   // id whose contents is populated from the contents of pickle.
   SessionCommand(id_type id, const Pickle& pickle);
@@ skipping 19 matching lines @@
   Pickle* PayloadAsPickle() const;
 
  private:
   const id_type id_;
   std::string contents_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionCommand);
 };
 
 #endif  // CHROME_BROWSER_SESSIONS_SESSION_COMMAND_H_