Pass the selected non-native file information from the browser to FileInputType.

public/web/WebFileChooserCompletion.h

Index: public/web/WebFileChooserCompletion.h
diff --git a/public/web/WebFileChooserCompletion.h b/public/web/WebFileChooserCompletion.h
index 19c0f268c64947c86a3b2649c52b5635bfa90995..84d1e5db4856d5114980ec5764457234ed2fc0e2 100644
--- a/public/web/WebFileChooserCompletion.h
+++ b/public/web/WebFileChooserCompletion.h
@@ -32,6 +32,7 @@
 #define WebFileChooserCompletion_h
 
 #include "../platform/WebString.h"
+#include "../platform/WebURL.h"
 
 namespace blink {
 
@@ -47,6 +48,22 @@ public:
         // The display name of the file that is to be exposed as File.name in
         // the DOM layer. If it is empty the base part of the |path| is used.
         WebString displayName;
+
+        // File system URL.
+        WebURL fileSystemURL;
+
+        // Metadata of non-native file.
+        // 0 is Unix epoch, unit is sec.
+        double modificationTime;
+        long long length;
+        bool isDirectory;
+
+        SelectedFileInfo()
+            : modificationTime(0)
+            , length(0)
+            , isDirectory(false)
+        {
+        }
     };
 
     // Called with zero or more file names. Zero-lengthed vector means that