[downloads] Remove DownloadManager::RemoveAllDownloads.

chrome/browser/extensions/api/downloads/downloads_api_browsertest.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.
 
 // Disable everything on windows only. http://crbug.com/306144
 #ifndef OS_WIN
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 302 matching lines @@
   void SetUpOnMainThread() override {
     ExtensionApiTest::SetUpOnMainThread();
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&chrome_browser_net::SetUrlRequestMocksEnabled, true));
     InProcessBrowserTest::SetUpOnMainThread();
     GoOnTheRecord();
     CreateAndSetDownloadsDirectory();
     current_browser()->profile()->GetPrefs()->SetBoolean(
         prefs::kPromptForDownload, false);
-    GetOnRecordManager()->RemoveAllDownloads();
     events_listener_.reset(new DownloadsEventsListener());
     // Disable file chooser for current profile.
     DownloadTestFileActivityObserver observer(current_browser()->profile());
     observer.EnableFileChooser(false);
   }
 
   void GoOnTheRecord() { current_browser_ = browser(); }
 
   void GoOffTheRecord() {
     if (!incognito_browser_) {
       incognito_browser_ = CreateIncognitoBrowser();
-      GetOffRecordManager()->RemoveAllDownloads();
       // Disable file chooser for incognito profile.
       DownloadTestFileActivityObserver observer(incognito_browser_->profile());
       observer.EnableFileChooser(false);
     }
     current_browser_ = incognito_browser_;
   }
 
   bool WaitFor(const std::string& event_name, const std::string& json_args) {
     return events_listener_->WaitFor(
         current_browser()->profile(), event_name, json_args);
@@ skipping 3957 matching lines @@
   EXPECT_EQ(downloads::FILENAME_CONFLICT_ACTION_PROMPT, conflict_action);
   EXPECT_FALSE(warnings.empty());
   EXPECT_EQ(Warning::kDownloadFilenameConflict,
             warnings.begin()->warning_type());
   EXPECT_EQ("incumbent", warnings.begin()->extension_id());
 }
 
 }  // namespace extensions
 
 #endif  // http://crbug.com/306144