[Downloads] Always call DM::StartDownload() for explicit downloads.

content/browser/download/download_file_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 "base/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/test/test_file_util.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/byte_stream.h"
@@ skipping 112 matching lines @@
     input_stream_ = new StrictMock<MockByteStreamReader>();
 
     // TODO: Need to actually create a function that'll set the variables
     // based on the inputs from the callback.
     EXPECT_CALL(*input_stream_, RegisterCallback(_))
         .WillOnce(Invoke(this, &DownloadFileTest::RegisterCallback))
         .RetiresOnSaturation();
 
     scoped_ptr<DownloadSaveInfo> save_info(new DownloadSaveInfo());
     download_file_.reset(
-        new DownloadFileImpl(save_info.Pass(),
+        new DownloadFileImpl(*save_info,
                              base::FilePath(),
                              GURL(),  // Source
                              GURL(),  // Referrer
                              calculate_hash,
+                             save_info->file_stream.Pass(),
                              scoped_ptr<ByteStreamReader>(input_stream_),
                              net::BoundNetLog(),
                              scoped_ptr<PowerSaveBlocker>().Pass(),
                              observer_factory_.GetWeakPtr()));
     download_file_->SetClientGuid(
         "12345678-ABCD-1234-DCBA-123456789ABC");
 
     EXPECT_CALL(*input_stream_, Read(_, _))
         .WillOnce(Return(ByteStreamReader::STREAM_EMPTY))
         .RetiresOnSaturation();
@@ skipping 448 matching lines @@
 
   EXPECT_EQ(static_cast<int64>(strlen(kTestData1) + strlen(kTestData2)),
             bytes_);
   EXPECT_EQ(download_file_->GetHashState(), hash_state_);
 
   FinishStream(DOWNLOAD_INTERRUPT_REASON_NONE, true);
   DestroyDownloadFile(0);
 }
 
 }  // namespace content