Reland 152221 - chromeos: Sync animation.

ash/launcher/launcher_model.cc

Index: ash/launcher/launcher_model.cc
diff --git a/ash/launcher/launcher_model.cc b/ash/launcher/launcher_model.cc
index d9aa8adb3a618709f3763ca10b5ffb61b7be1ece..2945a5dc0bf0471927480aa27b365c02a8b75441 100644
--- a/ash/launcher/launcher_model.cc
+++ b/ash/launcher/launcher_model.cc
@@ -7,7 +7,6 @@
 #include <algorithm>
 
 #include "ash/launcher/launcher_model_observer.h"
-#include "ui/aura/window.h"
 
 namespace ash {
 
@@ -37,7 +36,7 @@ bool CompareByWeight(const LauncherItem& a, const LauncherItem& b) {
 
 }  // namespace
 
-LauncherModel::LauncherModel() : next_id_(1) {
+LauncherModel::LauncherModel() : next_id_(1), status_(STATUS_NORMAL) {
   LauncherItem app_list;
   app_list.type = TYPE_APP_LIST;
   app_list.is_incognito = false;
@@ -118,6 +117,15 @@ LauncherItems::const_iterator LauncherModel::ItemByID(int id) const {
   return items_.end();
 }
 
+void LauncherModel::SetStatus(Status status) {
+  if (status_ == status)
+    return;
+
+  status_ = status;
+  FOR_EACH_OBSERVER(LauncherModelObserver, observers_,
+                    LauncherStatusChanged());
+}
+
 void LauncherModel::AddObserver(LauncherModelObserver* observer) {
   observers_.AddObserver(observer);
 }