Hooked up NetLog to DownloadItem, DownloadFile, and FileStream.

content/shell/shell_browser_context.cc

Index: content/shell/shell_browser_context.cc
diff --git a/content/shell/shell_browser_context.cc b/content/shell/shell_browser_context.cc
index 079687ecd4fa9fce3d95c457c8f01f393755dbcf..6078b3883b81398fe1b0193393908f1e6150b2cc 100644
--- a/content/shell/shell_browser_context.cc
+++ b/content/shell/shell_browser_context.cc
@@ -138,7 +138,8 @@ SSLHostState* ShellBrowserContext::GetSSLHostState()  {
 DownloadManager* ShellBrowserContext::GetDownloadManager()  {
   if (!download_manager_.get()) {
     download_manager_delegate_ = new ShellDownloadManagerDelegate();
-    download_manager_ = new DownloadManagerImpl(download_manager_delegate_);
+    download_manager_ = new DownloadManagerImpl(download_manager_delegate_,
+                                                NULL);
     download_manager_delegate_->SetDownloadManager(download_manager_.get());
     download_manager_->Init(this);
   }