Hooked up NetLog to DownloadItem, DownloadFile, and FileStream.

content/browser/download/download_manager_impl.h

Index: content/browser/download/download_manager_impl.h
diff --git a/content/browser/download/download_manager_impl.h b/content/browser/download/download_manager_impl.h
index ce28cc8eb14924dc17f5490073c5e8821079c138..0e6cd009fcb7af7f195a0a804a78e8f5ea155b98 100644
--- a/content/browser/download/download_manager_impl.h
+++ b/content/browser/download/download_manager_impl.h
@@ -25,7 +25,8 @@ class CONTENT_EXPORT DownloadManagerImpl
     : public content::DownloadManager,
       public DownloadItemImpl::Delegate {
  public:
-  DownloadManagerImpl(content::DownloadManagerDelegate* delegate);
+  DownloadManagerImpl(content::DownloadManagerDelegate* delegate,
+                      net::NetLog* net_log);
 
   // content::DownloadManager functions.
   virtual void Shutdown() OVERRIDE;
@@ -71,7 +72,7 @@ class CONTENT_EXPORT DownloadManagerImpl
   virtual int InProgressCount() const OVERRIDE;
   virtual content::BrowserContext* GetBrowserContext() const OVERRIDE;
   virtual FilePath LastDownloadPath() OVERRIDE;
-  virtual void CreateDownloadItem(
+  virtual net::BoundNetLog CreateDownloadItem(
       DownloadCreateInfo* info,
       const DownloadRequestHandle& request_handle) OVERRIDE;
   virtual content::DownloadItem* CreateSavePackageDownloadItem(
@@ -250,6 +251,8 @@ class CONTENT_EXPORT DownloadManagerImpl
   // For debugging only.
   int64 largest_db_handle_in_history_;
 
+  net::NetLog* net_log_;
+
   DISALLOW_COPY_AND_ASSIGN(DownloadManagerImpl);
 };