[WebModals] New API for browser-scoped popup management.

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 1604 matching lines @@
 }
 
 - (BOOL)isTabDraggable:(NSView*)tabView {
   // TODO(avi, thakis): ConstrainedWindowSheetController has no api to move
   // tabsheets between windows. Until then, we have to prevent having to move a
   // tabsheet between windows, e.g. no tearing off of tabs.
   int index = [tabStripController_ modelIndexForTabView:tabView];
   WebContents* contents = browser_->tab_strip_model()->GetWebContentsAt(index);
   if (!contents)
     return NO;
+
+  // TODO(gbillock): Update to PopupManager.
   return !WebContentsModalDialogManager::FromWebContents(contents)->
       IsDialogActive();
 }
 
 // TabStripControllerDelegate protocol.
 - (void)onActivateTabWithContents:(WebContents*)contents {
   // Update various elements that are interested in knowing the current
   // WebContents.
 
   // Update all the UI bits.
@@ skipping 669 matching lines @@
 
 - (BOOL)supportsBookmarkBar {
   return [self supportsWindowFeature:Browser::FEATURE_BOOKMARKBAR];
 }
 
 - (BOOL)isTabbedWindow {
   return browser_->is_type_tabbed();
 }
 
 @end  // @implementation BrowserWindowController(WindowType)