Improve panel related tests to make them more reliable

chrome/browser/ui/panels/docked_panel_collection.cc

Index: chrome/browser/ui/panels/docked_panel_collection.cc
diff --git a/chrome/browser/ui/panels/docked_panel_collection.cc b/chrome/browser/ui/panels/docked_panel_collection.cc
index da5c4cc121eb1020c721f1105d3d84f8b0b2b1a3..1c6ed18f93dfc1365135c62a319d1834db72e7ad 100644
--- a/chrome/browser/ui/panels/docked_panel_collection.cc
+++ b/chrome/browser/ui/panels/docked_panel_collection.cc
@@ -113,12 +113,8 @@ void DockedPanelCollection::AddPanel(Panel* panel,
     panels_.insert(iter, panel);
   }
 
-  if (update_bounds) {
-    if ((positioning_mask & DELAY_LAYOUT_REFRESH) != 0)
-      ScheduleLayoutRefresh();
-    else
-      RefreshLayout();
-  }
+  if (update_bounds)
+    RefreshLayout();
 }
 
 gfx::Point DockedPanelCollection::GetDefaultPositionForPanel(
@@ -766,20 +762,8 @@ void DockedPanelCollection::UpdatePanelOnCollectionChange(Panel* panel) {
   panel->SetWindowCornerStyle(panel::TOP_ROUNDED);
 }
 
-void DockedPanelCollection::ScheduleLayoutRefresh() {
-  refresh_action_factory_.InvalidateWeakPtrs();
-  MessageLoop::current()->PostDelayedTask(FROM_HERE,
-      base::Bind(&DockedPanelCollection::RefreshLayout,
-                 refresh_action_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(PanelManager::AdjustTimeInterval(
-          kRefreshLayoutAfterActivePanelChangeDelayMs)));
-}
-
 void DockedPanelCollection::OnPanelActiveStateChanged(Panel* panel) {
-  // Refresh layout, but wait till active states settle.
-  // This lets us avoid refreshing too many times when one panel loses
-  // focus and another gains it.
-  ScheduleLayoutRefresh();
+  RefreshLayout();
 }
 
 bool DockedPanelCollection::HasPanel(Panel* panel) const {