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

chrome/browser/ui/panels/panel.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/panels/panel.h"
 
 #include "base/logging.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 139 matching lines @@
 }
 
 void Panel::MoveToStrip(PanelStrip* new_strip) {
   DCHECK_NE(panel_strip_, new_strip);
   if (panel_strip_)
     panel_strip_->RemovePanel(this);
 
   panel_strip_ = new_strip;
   panel_strip_->AddPanel(this);
 
+  native_panel_->PreventActivationByOS(panel_strip_->TreatAllPanelsAsMinimized()
+                                     || expansion_state_ != EXPANDED);
+
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PANEL_CHANGED_LAYOUT_MODE,
       content::Source<Panel>(this),
       content::NotificationService::NoDetails());
 }
 
 void Panel::SetExpansionState(ExpansionState new_state) {
   if (expansion_state_ == new_state)
     return;
   old_expansion_state_ = expansion_state_;
   expansion_state_ = new_state;
 
   manager()->OnPanelExpansionStateChanged(this);
 
   // The minimized panel should not get the focus.
   if (expansion_state_ == MINIMIZED)
     Deactivate();
 
+  native_panel_->PreventActivationByOS(panel_strip_->TreatAllPanelsAsMinimized()
+                                     || expansion_state_ != EXPANDED);
+
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PANEL_CHANGED_EXPANSION_STATE,
       content::Source<Panel>(this),
       content::NotificationService::NoDetails());
 }
 
 bool Panel::IsDrawingAttention() const {
   return native_panel_->IsDrawingAttention();
 }
 
@@ skipping 497 matching lines @@
       native_panel_->ContentSizeFromWindowSize(max_size_));
 }
 
 void Panel::OnWindowSizeAvailable() {
   ConfigureAutoResize(browser()->GetSelectedWebContents());
 }
 
 void Panel::DestroyBrowser() {
   native_panel_->DestroyPanelBrowser();
 }