Initial CL for Downloads resumption.

content/browser/download/download_item_impl_delegate.h

Index: content/browser/download/download_item_impl_delegate.h
diff --git a/content/browser/download/download_item_impl_delegate.h b/content/browser/download/download_item_impl_delegate.h
index be6f890f489257f383bc9e873ae3246e710547f5..27be98f2abc6b690da7c1cabd635d2ed9e93b27e 100644
--- a/content/browser/download/download_item_impl_delegate.h
+++ b/content/browser/download/download_item_impl_delegate.h
@@ -10,6 +10,7 @@
 #include "content/common/content_export.h"
 #include "content/public/browser/download_danger_type.h"
 #include "content/public/browser/download_item.h"
+#include "content/public/browser/download_url_parameters.h"
 
 namespace content {
 class DownloadItemImpl;
@@ -66,6 +67,11 @@ class CONTENT_EXPORT DownloadItemImplDelegate {
   // to OnDownloadedFileRemoved().
   virtual void CheckForFileRemoval(DownloadItemImpl* download_item);
 
+  // Called when an interrupted download is resumed.
+  virtual void ResumeInterruptedDownload(
+      scoped_ptr<content::DownloadUrlParameters> params,
+      content::DownloadId id);
+
   // For contextual issues like language and prefs.
   virtual BrowserContext* GetBrowserContext() const;