Moves TabNavigation into components/sessions and renames

chrome/browser/sessions/base_session_service.h

Index: chrome/browser/sessions/base_session_service.h
diff --git a/chrome/browser/sessions/base_session_service.h b/chrome/browser/sessions/base_session_service.h
index 1d3fac2476d00df0eff6833e5747de50347545f0..2e7b25809820a9ed1a022db44199c5f4073254b9 100644
--- a/chrome/browser/sessions/base_session_service.h
+++ b/chrome/browser/sessions/base_session_service.h
@@ -21,7 +21,10 @@
 class Profile;
 class SessionBackend;
 class SessionCommand;
-class TabNavigation;
+
+namespace sessions {
+class SerializedNavigationEntry;
+}
 
 // BaseSessionService is the super class of both tab restore service and
 // session service. It contains commonality needed by both, in particular
@@ -89,7 +92,7 @@ class BaseSessionService : public CancelableRequestProvider {
   SessionCommand* CreateUpdateTabNavigationCommand(
       SessionID::id_type command_id,
       SessionID::id_type tab_id,
-      const TabNavigation& navigation);
+      const sessions::SerializedNavigationEntry& navigation);
 
   // Creates a SessionCommand that represents marking a tab as an application.
   SessionCommand* CreateSetTabExtensionAppIDCommand(
@@ -111,11 +114,13 @@ class BaseSessionService : public CancelableRequestProvider {
       const std::string& app_name);
 
   // Converts a SessionCommand previously created by
-  // CreateUpdateTabNavigationCommand into a TabNavigation. Returns true
-  // on success. If successful |tab_id| is set to the id of the restored tab.
-  bool RestoreUpdateTabNavigationCommand(const SessionCommand& command,
-                                         TabNavigation* navigation,
-                                         SessionID::id_type* tab_id);
+  // CreateUpdateTabNavigationCommand into a
+  // sessions::SerializedNavigationEntry. Returns true on success. If
+  // successful |tab_id| is set to the id of the restored tab.
+  bool RestoreUpdateTabNavigationCommand(
+      const SessionCommand& command,
+      sessions::SerializedNavigationEntry* navigation,
+      SessionID::id_type* tab_id);
 
   // Extracts a SessionCommand as previously created by
   // CreateSetTabExtensionAppIDCommand into the tab id and application