Use aura::WindowProperty for title and name strings.

ash/aura/wm_window_aura.cc

Index: ash/aura/wm_window_aura.cc
diff --git a/ash/aura/wm_window_aura.cc b/ash/aura/wm_window_aura.cc
index ac850aa00ca98e1860816e4af413187743622985..9e26b5ed4f3cb70fb496d6717d613ed7f8612d5f 100644
--- a/ash/aura/wm_window_aura.cc
+++ b/ash/aura/wm_window_aura.cc
@@ -159,7 +159,7 @@ void WmWindowAura::SetName(const char* name) {
 }
 
 std::string WmWindowAura::GetName() const {
-  return window_->name();
+  return window_->GetName();
 }
 
 void WmWindowAura::SetTitle(const base::string16& title) {
@@ -167,7 +167,7 @@ void WmWindowAura::SetTitle(const base::string16& title) {
 }
 
 base::string16 WmWindowAura::GetTitle() const {
-  return window_->title();
+  return window_->GetTitle();
 }
 
 void WmWindowAura::SetShellWindowId(int id) {