Move closing-blank-tab logic in Browser class to DownloadUIConttroller

chrome/browser/download/download_ui_controller_unittest.cc

 // Copyright 2013 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 "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 211 matching lines @@
       .WillRepeatedly(Return(content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS));
   EXPECT_CALL(*item, GetLastReason())
       .WillRepeatedly(Return(content::DOWNLOAD_INTERRUPT_REASON_NONE));
   EXPECT_CALL(*item, GetReceivedBytes()).WillRepeatedly(Return(0));
   EXPECT_CALL(*item, GetTotalBytes()).WillRepeatedly(Return(0));
   EXPECT_CALL(*item, GetTargetDisposition()).WillRepeatedly(
       Return(content::DownloadItem::TARGET_DISPOSITION_OVERWRITE));
   EXPECT_CALL(*item, GetOpened()).WillRepeatedly(Return(false));
   EXPECT_CALL(*item, GetMimeType()).WillRepeatedly(Return(std::string()));
   EXPECT_CALL(*item, GetURL()).WillRepeatedly(testing::ReturnRefOfCopy(GURL()));
+  EXPECT_CALL(*item, GetWebContents()).WillRepeatedly(Return(nullptr));
   EXPECT_CALL(*item, IsTemporary()).WillRepeatedly(Return(false));
   return item.Pass();
 }
 
 scoped_ptr<DownloadUIController::Delegate>
 DownloadUIControllerTest::GetTestDelegate() {
   scoped_ptr<DownloadUIController::Delegate> delegate(
       new TestDelegate(notified_item_receiver_factory_.GetWeakPtr()));
   return delegate.Pass();
 }
@@ skipping 98 matching lines @@
   // DownloadUIController. It should ignore the download since it's marked as
   // being restored from history.
   ASSERT_TRUE(manager_observer());
   manager_observer()->OnDownloadCreated(manager(), item.get());
 
   // Finally, the expectation we've been waiting for:
   EXPECT_FALSE(notified_item());
 }
 
 } // namespace