Shift passage of FileStream in downloads system to be by scoped_ptr<>.

content/browser/download/download_create_info.cc

Index: content/browser/download/download_create_info.cc
diff --git a/content/browser/download/download_create_info.cc b/content/browser/download/download_create_info.cc
index 051bcccf04e68912fa1d51aa1098633088ed3a77..bef5aa4341aae98fc7d82095cf112361026b7d86 100644
--- a/content/browser/download/download_create_info.cc
+++ b/content/browser/download/download_create_info.cc
@@ -28,6 +28,7 @@ DownloadCreateInfo::DownloadCreateInfo(
       transition_type(transition_type),
       db_handle(0),
       prompt_user_for_save_location(false),
+      save_info(new content::DownloadSaveInfo()),
       request_bound_net_log(bound_net_log) {
 }
 
@@ -39,7 +40,8 @@ DownloadCreateInfo::DownloadCreateInfo()
       has_user_gesture(false),
       transition_type(content::PAGE_TRANSITION_LINK),
       db_handle(0),
-      prompt_user_for_save_location(false) {
+      prompt_user_for_save_location(false),
+      save_info(new content::DownloadSaveInfo()) {
 }
 
 DownloadCreateInfo::~DownloadCreateInfo() {
@@ -49,14 +51,12 @@ std::string DownloadCreateInfo::DebugString() const {
   return base::StringPrintf("{"
                             " download_id = %s"
                             " url = \"%s\""
-                            " save_info.file_path = \"%" PRFilePath "\""
                             " received_bytes = %" PRId64
                             " total_bytes = %" PRId64
                             " prompt_user_for_save_location = %c"
                             " }",
                             download_id.DebugString().c_str(),
                             url().spec().c_str(),
-                            save_info.file_path.value().c_str(),
                             received_bytes,
                             total_bytes,
                             prompt_user_for_save_location ? 'T' : 'F');