Relanding in-progress download bug fix

chrome/browser/browser.cc

Index: chrome/browser/browser.cc
===================================================================
--- chrome/browser/browser.cc	(revision 14949)
+++ chrome/browser/browser.cc	(working copy)
@@ -1525,6 +1525,15 @@
   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.
+  // Note that the next call when it returns false will ask the user for
+  // confirmation before closing the browser if the user decides so.
+  return CanCloseWithInProgressDownloads();
+}
 
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, TabStripModelObserver implementation: