Move chrome.downloads out of experimental to dev

chrome/browser/download/chrome_download_manager_delegate.h

Index: chrome/browser/download/chrome_download_manager_delegate.h
diff --git a/chrome/browser/download/chrome_download_manager_delegate.h b/chrome/browser/download/chrome_download_manager_delegate.h
index 3ee1518d5a8aff3eb3e6e61a1932864d0a21f95d..4c5bc7aa684eaf571262c6621171d9445234d592 100644
--- a/chrome/browser/download/chrome_download_manager_delegate.h
+++ b/chrome/browser/download/chrome_download_manager_delegate.h
@@ -21,6 +21,7 @@
 class CrxInstaller;
 class DownloadHistory;
 class DownloadPrefs;
+class ExtensionDownloadsEventRouter;
 class Profile;
 
 namespace content {
@@ -201,6 +202,14 @@ class ChromeDownloadManagerDelegate
 
   content::NotificationRegistrar registrar_;
 
+  // The ExtensionDownloadsEventRouter dispatches download creation, change, and
+  // erase events to extensions. Like ChromeDownloadManagerDelegate, it's a
+  // chrome-level concept and its lifetime should match DownloadManager. There
+  // should be a separate EDER for on-record and off-record managers.
+  // There does not appear to be a separate ExtensionSystem for on-record and
+  // off-record profiles, so ExtensionSystem cannot own the EDER.
+  scoped_ptr<ExtensionDownloadsEventRouter> extension_event_router_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeDownloadManagerDelegate);
 };