Shift "commit point" for when a download will no longer accept cancels.

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.h"
 #include "base/string_number_conversions.h"
 #include "base/test/test_file_util.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/download/byte_stream.h"
@@ skipping 109 matching lines @@
     // to ensure that all resources are cleaned up before the test exits.
     download_manager_ = NULL;
     ui_thread_.message_loop()->RunAllPending();
   }
 
   // Mock calls to this function are forwarded here.
   void RegisterCallback(base::Closure sink_callback) {
     sink_callback_ = sink_callback;
   }
 
+  void SetInterruptReasonCallback(bool* was_called,
+                                  content::DownloadInterruptReason* reason_p,
+                                  content::DownloadInterruptReason reason) {
+    *was_called = true;
+    *reason_p = reason;
+  }
+
   virtual bool CreateDownloadFile(int offset, bool calculate_hash) {
     // There can be only one.
     DCHECK(!download_file_.get());
 
     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))
@@ skipping 462 matching lines @@
                          base::TimeDelta::FromMilliseconds(750));
   loop_.Run();
 
   EXPECT_EQ(static_cast<int64>(strlen(kTestData1) + strlen(kTestData2)),
             bytes_);
   EXPECT_EQ(download_file_->GetHashState(), hash_state_);
 
   FinishStream(content::DOWNLOAD_INTERRUPT_REASON_NONE, true);
   DestroyDownloadFile(0);
 }