Adds Window::MoveChildToFront, with surrounding changes.

views/widget/native_widget_aura.cc

Index: views/widget/native_widget_aura.cc
diff --git a/views/widget/native_widget_aura.cc b/views/widget/native_widget_aura.cc
index cb4eebafab360b2eb12f222ff2297c5b1f98a8f6..f5c74dc69390a98797e0b7c47b8c7c7270a74ac9 100644
--- a/views/widget/native_widget_aura.cc
+++ b/views/widget/native_widget_aura.cc
@@ -335,20 +335,13 @@ void NativeWidgetAura::SetSize(const gfx::Size& size) {
   window_->SetBounds(gfx::Rect(window_->bounds().origin(), size));
 }
 
-void NativeWidgetAura::SetBoundsConstrained(const gfx::Rect& bounds,
-                                            Widget* other_widget) {
-  // http://crbug.com/102580
-  NOTIMPLEMENTED();
-}
-
 void NativeWidgetAura::MoveAbove(gfx::NativeView native_view) {
-  // http://crbug.com/102578
-  NOTIMPLEMENTED();
+  if (window_->parent() && window_->parent() == native_view->parent())
+    window_->parent()->MoveChildAbove(window_, native_view);
 }
 
 void NativeWidgetAura::MoveToTop() {
-  // http://crbug.com/102578
-  NOTIMPLEMENTED();
+  window_->parent()->MoveChildToFront(window_);
 }
 
 void NativeWidgetAura::SetShape(gfx::NativeRegion region) {