Make downloads not prevent tabs from closing....

chrome/browser/browser.cc

 // Copyright (c) 2006-2009 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/browser.h"
 
 #include "app/animation.h"
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "base/idle_timer.h"
@@ skipping 1539 matching lines @@
 bool Browser::RunUnloadListenerBeforeClosing(TabContents* contents) {
   // If the TabContents is not connected yet, then there's no unload
   // handler we can fire even if the TabContents has an unload listener.
   // One case where we hit this is in a tab that has an infinite loop
   // before load.
   if (TabHasUnloadListener(contents)) {
     // If the page has unload listeners, then we tell the renderer to fire
     // them. Once they have fired, we'll get a message back saying whether
     // to proceed closing the page or not, which sends us back to this method
     // with the HasUnloadListener bit cleared.
-    contents->render_view_host()->FirePageBeforeUnload();
+    contents->render_view_host()->FirePageBeforeUnload(false);
     return true;
   }
   return false;
 }
 
 bool Browser::CanCloseContentsAt(int index) {
   if (tabstrip_model_.count() > 1)
     return true;
   // We are closing the last tab for this browser. Make sure to check for
   // in-progress downloads.
@@ skipping 892 matching lines @@
     return;
   }
 
   // Process beforeunload tabs first. When that queue is empty, process
   // unload tabs.
   if (!tabs_needing_before_unload_fired_.empty()) {
     TabContents* tab = *(tabs_needing_before_unload_fired_.begin());
     // Null check render_view_host here as this gets called on a PostTask and
     // the tab's render_view_host may have been nulled out.
     if (tab->render_view_host()) {
-      tab->render_view_host()->FirePageBeforeUnload();
+      tab->render_view_host()->FirePageBeforeUnload(false);
     } else {
       ClearUnloadState(tab);
     }
   } else if (!tabs_needing_unload_fired_.empty()) {
     // We've finished firing all beforeunload events and can proceed with unload
     // events.
     // TODO(ojan): We should add a call to browser_shutdown::OnShutdownStarting
     // somewhere around here so that we have accurate measurements of shutdown
     // time.
     // TODO(ojan): We can probably fire all the unload events in parallel and
@@ skipping 286 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserToolbarModel (private):
 
 NavigationController* Browser::BrowserToolbarModel::GetNavigationController() {
   // This |current_tab| can be NULL during the initialization of the
   // toolbar during window creation (i.e. before any tabs have been added
   // to the window).
   TabContents* current_tab = browser_->GetSelectedTabContents();
   return current_tab ? &current_tab->controller() : NULL;
 }