When the download folder does not exist, change the download folder to a user's "Downloads"

chrome/browser/download/download_manager_unittest.cc

 // Copyright (c) 2011 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 <string>
 #include <set>
 
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util-inl.h"
@@ skipping 209 matching lines @@
     download_manager_->AddObserver(this);
   }
 
   ~SelectFileObserver() {
     download_manager_->RemoveObserver(this);
   }
 
   // Downloadmanager::Observer functions.
   virtual void ModelChanged() {}
   virtual void ManagerGoingDown() {}
-  virtual void SelectFileDialogDisplayed(int32 id) {
+  virtual void SelectFileDialogDisplayed(int32 id,
+                                         const FilePath& suggested_path) {
     file_dialog_ids_.insert(id);
   }
 
   bool ShowedFileDialogForId(int32 id) {
     return file_dialog_ids_.find(id) != file_dialog_ids_.end();
   }
 
  private:
   std::set<int32> file_dialog_ids_;
   scoped_refptr<DownloadManager> download_manager_;
@@ skipping 340 matching lines @@
   EXPECT_FALSE(observer->was_opened());
   EXPECT_EQ(DownloadItem::COMPLETE, download->state());
 
   EXPECT_TRUE(file_util::PathExists(new_path));
   EXPECT_FALSE(file_util::PathExists(cr_path));
   EXPECT_FALSE(file_util::PathExists(unique_new_path));
   std::string file_contents;
   EXPECT_TRUE(file_util::ReadFileToString(new_path, &file_contents));
   EXPECT_EQ(std::string(kTestData), file_contents);
 }