Added member data to classes to support download resumption.

content/browser/download/save_file.cc

Index: content/browser/download/save_file.cc
diff --git a/content/browser/download/save_file.cc b/content/browser/download/save_file.cc
index 599ad760955be846db92beb768742dde9f372338..925bec284723b7936d851dd7889e457ff0070936 100644
--- a/content/browser/download/save_file.cc
+++ b/content/browser/download/save_file.cc
@@ -5,13 +5,19 @@
 #include "content/browser/download/save_file.h"
 
 #include "base/logging.h"
+#include "base/pickle.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/file_stream.h"
 
 using content::BrowserThread;
 
 SaveFile::SaveFile(const SaveFileCreateInfo* info)
-    : file_(FilePath(), info->url, GURL(), 0, linked_ptr<net::FileStream>()),
+    : file_(FilePath(),
+            info->url,
+            GURL(),
+            0,
+            Pickle(),
+            linked_ptr<net::FileStream>()),
       info_(info) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));