[OriginChip] Add animations for the hiding and showing of the chip.

chrome/browser/ui/omnibox/omnibox_edit_controller.cc

Index: chrome/browser/ui/omnibox/omnibox_edit_controller.cc
diff --git a/chrome/browser/ui/omnibox/omnibox_edit_controller.cc b/chrome/browser/ui/omnibox/omnibox_edit_controller.cc
index 43987fcc40156c698d1c6f36b89892d8ecff8293..8e004f8d46c9167a06c691d3b94a0bb389713619 100644
--- a/chrome/browser/ui/omnibox/omnibox_edit_controller.cc
+++ b/chrome/browser/ui/omnibox/omnibox_edit_controller.cc
@@ -6,6 +6,7 @@
 
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/command_updater.h"
+#include "chrome/browser/ui/toolbar/toolbar_model.h"
 
 void OmniboxEditController::OnAutocompleteAccept(
     const GURL& destination_url,
@@ -26,5 +27,19 @@ OmniboxEditController::OmniboxEditController(CommandUpdater* command_updater)
           content::PAGE_TRANSITION_FROM_ADDRESS_BAR)) {
 }
 
+void OmniboxEditController::HideOriginChip() {
+  GetToolbarModel()->set_origin_chip_enabled(false);
+  OnChanged();
+}
+
+void OmniboxEditController::ShowOriginChip() {
+  if (GetToolbarModel()->url_replacement_enabled()) {
+    GetToolbarModel()->set_origin_chip_enabled(true);
+    OnChanged();
+  } else {
+    HideURLAndShowOriginChip();
+  }
+}
+
 OmniboxEditController::~OmniboxEditController() {
 }