[sessions] Properly namespace recently-componentized TabRestore code

components/sessions/core/in_memory_tab_restore_service.cc

Index: components/sessions/core/in_memory_tab_restore_service.cc
diff --git a/components/sessions/core/in_memory_tab_restore_service.cc b/components/sessions/core/in_memory_tab_restore_service.cc
index e480f7d1323ff99de361c9cb1b571f2f91976bd5..c5d7641f29b42eb45ab33924b66123bea1263d57 100644
--- a/components/sessions/core/in_memory_tab_restore_service.cc
+++ b/components/sessions/core/in_memory_tab_restore_service.cc
@@ -8,10 +8,10 @@
 
 #include "base/compiler_specific.h"
 
-using sessions::LiveTab;
+namespace sessions {
 
 InMemoryTabRestoreService::InMemoryTabRestoreService(
-    scoped_ptr<sessions::TabRestoreServiceClient> client,
+    scoped_ptr<TabRestoreServiceClient> client,
     TabRestoreService::TimeFactory* time_factory)
     : client_(client.Pass()),
       helper_(this, NULL, client_.get(), time_factory) {}
@@ -86,3 +86,5 @@ void InMemoryTabRestoreService::DeleteLastSession() {
 
 void InMemoryTabRestoreService::Shutdown() {
 }
+
+}  // namespace