Revert 124790 - Minimized panels should not open on Windows when activated by the OS

chrome/browser/ui/panels/panel_browser_window_gtk.cc

Index: chrome/browser/ui/panels/panel_browser_window_gtk.cc
===================================================================
--- chrome/browser/ui/panels/panel_browser_window_gtk.cc	(revision 124794)
+++ chrome/browser/ui/panels/panel_browser_window_gtk.cc	(working copy)
@@ -97,6 +97,10 @@
   ui::WorkAreaWatcherX::AddObserver(this);
   registrar_.Add(
       this,
+      chrome::NOTIFICATION_PANEL_CHANGED_EXPANSION_STATE,
+      content::Source<Panel>(panel_.get()));
+  registrar_.Add(
+      this,
       chrome::NOTIFICATION_PANEL_CHANGED_LAYOUT_MODE,
       content::Source<Panel>(panel_.get()));
   registrar_.Add(
@@ -271,6 +275,9 @@
   switch (type) {
     case chrome::NOTIFICATION_PANEL_CHANGED_LAYOUT_MODE:
       titlebar()->UpdateCustomFrame(true);
+      // No break. Accept focus code should execute for both cases.
+    case chrome::NOTIFICATION_PANEL_CHANGED_EXPANSION_STATE:
+      gtk_window_set_accept_focus(window(), !panel_->IsMinimized());
       break;
     case chrome::NOTIFICATION_WINDOW_CLOSED:
       // Cleanup.
@@ -380,11 +387,6 @@
   return IsActive();
 }
 
-void PanelBrowserWindowGtk::PreventActivationByOS(bool prevent_activation) {
-  gtk_window_set_accept_focus(window(), !prevent_activation);
-  return;
-}
-
 gfx::NativeWindow PanelBrowserWindowGtk::GetNativePanelHandle() {
   return GetNativeHandle();
 }