[downloads] Move platform specific code out of DownloadTargetDeterminer.

chrome/browser/download/download_test_file_activity_observer.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 "chrome/browser/download/download_test_file_activity_observer.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 34 matching lines @@
     bool did_show = file_chooser_displayed_;
     file_chooser_displayed_ = false;
     return did_show;
   }
 
   base::WeakPtr<MockDownloadManagerDelegate> GetWeakPtr() {
     return weak_ptr_factory_.GetWeakPtr();
   }
 
  protected:
-  void PromptUserForDownloadPath(
-      content::DownloadItem* item,
-      const base::FilePath& suggested_path,
-      const FileSelectedCallback& callback) override {
+  void RequestConfirmation(content::DownloadItem* item,
+                           const base::FilePath& suggested_path,
+                           DownloadConfirmationReason reason,
+                           const FileSelectedCallback& callback) override {
     file_chooser_displayed_ = true;
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
-        base::Bind(callback, (file_chooser_enabled_ ? suggested_path
-                                                    : base::FilePath())));
+        base::Bind(callback, (file_chooser_enabled_
+                                  ? DownloadConfirmationResult::CONFIRMED
+                                  : DownloadConfirmationResult::CANCELED),
+                   suggested_path));
   }
 
   void OpenDownload(content::DownloadItem* item) override {}
 
  private:
   bool file_chooser_enabled_;
   bool file_chooser_displayed_;
   base::WeakPtrFactory<MockDownloadManagerDelegate> weak_ptr_factory_;
 };
 
@@ skipping 11 matching lines @@
 
 void DownloadTestFileActivityObserver::EnableFileChooser(bool enable) {
   if (test_delegate_.get())
     test_delegate_->EnableFileChooser(enable);
 }
 
 bool DownloadTestFileActivityObserver::TestAndResetDidShowFileChooser() {
   return test_delegate_.get() &&
       test_delegate_->TestAndResetDidShowFileChooser();
 }