Basic metro snap view omnibox.

chrome/browser/ui/views/location_bar/location_bar_container.cc

Index: chrome/browser/ui/views/location_bar/location_bar_container.cc
diff --git a/chrome/browser/ui/views/location_bar/location_bar_container.cc b/chrome/browser/ui/views/location_bar/location_bar_container.cc
index 805c1322060b64377ae63dfc97cd61b512cef4c6..db01067ebb367c90dc1726afeef8be4c06c2bf4a 100644
--- a/chrome/browser/ui/views/location_bar/location_bar_container.cc
+++ b/chrome/browser/ui/views/location_bar/location_bar_container.cc
@@ -38,7 +38,12 @@ LocationBarContainer::~LocationBarContainer() {
 }
 
 void LocationBarContainer::SetLocationBarView(LocationBarView* view) {
-  DCHECK(!location_bar_view_ && view);
+  DCHECK(view);
+
+  if (location_bar_view_) {
+    view_parent_->RemoveChildView(location_bar_view_);
+  }
+
   location_bar_view_ = view;
   view_parent_->AddChildView(location_bar_view_);
   DCHECK_EQ(1, view_parent_->child_count());  // Only support one child.