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

chrome/browser/ui/panels/panel_browser_window_cocoa.mm

 // 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_browser_window_cocoa.h"
 
 #include "base/logging.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
@@ skipping 138 matching lines @@
 bool PanelBrowserWindowCocoa::IsPanelActive() const {
   // TODO(dcheng): It seems like a lot of these methods can be called before
   // our NSWindow is created. Do we really need to check in every one of these
   // methods if the NSWindow is created, or is there a better way to
   // gracefully handle this?
   if (!is_shown_)
     return false;
   return [[controller_ window] isMainWindow];
 }
 
+void PanelBrowserWindowCocoa::PreventActivationByOS(bool prevent_activation) {
+  [controller_ preventBecomingKeyWindow:prevent_activation];
+  return;
+}
+
 gfx::NativeWindow PanelBrowserWindowCocoa::GetNativePanelHandle() {
   return [controller_ window];
 }
 
 void PanelBrowserWindowCocoa::UpdatePanelTitleBar() {
   if (!is_shown_)
     return;
   [controller_ updateTitleBar];
 }
 
@@ skipping 205 matching lines @@
   return false;
 }
 
 bool NativePanelTestingCocoa::IsWindowSizeKnown() const {
   return true;
 }
 
 bool NativePanelTestingCocoa::IsAnimatingBounds() const {
   return [native_panel_window_->controller_ isAnimatingBounds];
 }