Fix history importing by delaying DownloadManager creation.

content/browser/download/download_create_info.h

Index: content/browser/download/download_create_info.h
diff --git a/content/browser/download/download_create_info.h b/content/browser/download/download_create_info.h
index 16088911c628c082a16d947aa101bf01fd478054..ed052943cd4e4d67fdf890241c3cf395405f8ee4 100644
--- a/content/browser/download/download_create_info.h
+++ b/content/browser/download/download_create_info.h
@@ -13,6 +13,7 @@
 #include "base/file_path.h"
 #include "base/time.h"
 #include "content/browser/download/download_file.h"
+#include "content/browser/download/download_id.h"
 #include "content/common/content_export.h"
 #include "content/public/common/page_transition_types.h"
 #include "googleurl/src/gurl.h"
@@ -26,7 +27,7 @@ struct CONTENT_EXPORT DownloadCreateInfo {
                      int64 received_bytes,
                      int64 total_bytes,
                      int32 state,
-                     int32 download_id,
+                     const DownloadId& download_id,
                      bool has_user_gesture,
                      content::PageTransition transition_type);
   DownloadCreateInfo();
@@ -65,7 +66,7 @@ struct CONTENT_EXPORT DownloadCreateInfo {
   int32 state;
 
   // The (per-session) ID of the download.
-  int32 download_id;
+  DownloadId download_id;
 
   // True if the download was initiated by user action.
   bool has_user_gesture;