content: Move all listeners of NOTIFICATION_RENDER_VIEW_HOST_CREATED out of content.

chrome/browser/download/download_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.
 
 #include <sstream>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
@@ skipping 1159 matching lines @@
           web_contents, web_contents, true);
   ASSERT_TRUE(tab_download_state);
   tab_download_state->set_download_status(
       DownloadRequestLimiter::DOWNLOADS_NOT_ALLOWED);
 
   // Try to start the download via Javascript and wait for the corresponding
   // load stop event.
   content::TestNavigationObserver observer(
       content::Source<content::NavigationController>(
           &web_contents->GetController()),
-      NULL,
       1);
   bool download_assempted;
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
       browser()->tab_strip_model()->GetActiveWebContents(),
       "window.domAutomationController.send(startDownload());",
       &download_assempted));
   ASSERT_TRUE(download_assempted);
   observer.WaitForObservation(
       base::Bind(&content::RunMessageLoop),
       base::Bind(&MessageLoop::Quit,
@@ skipping 1731 matching lines @@
   scoped_ptr<content::DownloadTestObserver> observer(
       DangerousDownloadWaiter(
           browser(), 1,
           content::DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_DENY));
   ui_test_utils::NavigateToURL(browser(), url);
   observer->WaitForFinished();
   EXPECT_EQ(1u, observer->NumDownloadsSeenInState(DownloadItem::CANCELLED));
   EXPECT_EQ(1u, observer->NumDangerousDownloadsSeen());
   EXPECT_FALSE(browser()->window()->IsDownloadShelfVisible());
 }