Clear the received slices in DownloadItemImpl when etag changed.

content/browser/download/download_manager_impl_unittest.cc

 // Copyright (c) 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.
 
 #include "content/browser/download/download_manager_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
@@ skipping 279 matching lines @@
   virtual ~MockDownloadFileFactory() {}
 
   // Overridden method from DownloadFileFactory
   MOCK_METHOD2(MockCreateFile,
                MockDownloadFile*(const DownloadSaveInfo&, ByteStreamReader*));
 
   DownloadFile* CreateFile(
       std::unique_ptr<DownloadSaveInfo> save_info,
       const base::FilePath& default_download_directory,
       std::unique_ptr<ByteStreamReader> byte_stream,
-      const std::vector<DownloadItem::ReceivedSlice>& received_slices,
       const net::NetLogWithSource& net_log,
       base::WeakPtr<DownloadDestinationObserver> observer) override {
     return MockCreateFile(*save_info, byte_stream.get());
   }
 };
 
 class MockBrowserContext : public BrowserContext {
  public:
   MockBrowserContext() {
     content::BrowserContext::Initialize(this, base::FilePath());
@@ skipping 338 matching lines @@
   EXPECT_CALL(GetMockDownloadItem(1), Remove()).Times(0);
 
   base::Callback<bool(const GURL&)> url_filter =
       GetSingleURLFilter(download_urls_[0]);
   int remove_count = download_manager_->RemoveDownloadsByURLAndTime(
       url_filter, base::Time(), base::Time::Max());
   EXPECT_EQ(remove_count, 1);
 }
 
 }  // namespace content