[PermissionBubble] identical ctor across platforms.

chrome/browser/ui/cocoa/browser_window_controller.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 
 #include <cmath>
 #include <numeric>
 
 #include "base/command_line.h"
@@ skipping 1260 matching lines @@
   // No need to remove previous bubble. It will close itself.
   PermissionBubbleManager* manager(nullptr);
   if (oldContents) {
     manager = PermissionBubbleManager::FromWebContents(oldContents);
     if (manager)
       manager->SetView(nullptr);
   }
 
   if (newContents) {
     if (!permissionBubbleCocoa_.get()) {
-      permissionBubbleCocoa_.reset(new PermissionBubbleCocoa([self window]));
+      DCHECK(browser_.get());
+      permissionBubbleCocoa_.reset(new PermissionBubbleCocoa(browser_.get()));
     }
     manager = PermissionBubbleManager::FromWebContents(newContents);
     if (manager)
       manager->SetView(permissionBubbleCocoa_.get());
   }
 }
 
 - (void)zoomChangedForActiveTab:(BOOL)canShowBubble {
   [toolbarController_ zoomChangedForActiveTab:canShowBubble];
 }
@@ skipping 939 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)