Add mime type information to the download database

content/browser/download/download_item_impl.cc

Index: content/browser/download/download_item_impl.cc
diff --git a/content/browser/download/download_item_impl.cc b/content/browser/download/download_item_impl.cc
index 507dfe1692cbc5dd0da9e58ad25fe46649b23bfe..45a2e365d0ff20e29ae5c0d277a01f4ee528428a 100644
--- a/content/browser/download/download_item_impl.cc
+++ b/content/browser/download/download_item_impl.cc
@@ -102,6 +102,8 @@ DownloadItemImpl::DownloadItemImpl(DownloadItemImplDelegate* delegate,
                                    const base::FilePath& target_path,
                                    const std::vector<GURL>& url_chain,
                                    const GURL& referrer_url,
+                                   const std::string& mime_type,
+                                   const std::string& original_mime_type,
                                    const base::Time& start_time,
                                    const base::Time& end_time,
                                    const std::string& etag,
@@ -122,6 +124,8 @@ DownloadItemImpl::DownloadItemImpl(DownloadItemImplDelegate* delegate,
       referrer_url_(referrer_url),
       transition_type_(PAGE_TRANSITION_LINK),
       has_user_gesture_(false),
+      mime_type_(mime_type),
+      original_mime_type_(original_mime_type),
       total_bytes_(total_bytes),
       received_bytes_(received_bytes),
       bytes_per_sec_(0),