Make isolated file system works for a device root (e.g. X:\\)

webkit/glue/web_intent_data.h

Index: webkit/glue/web_intent_data.h
diff --git a/webkit/glue/web_intent_data.h b/webkit/glue/web_intent_data.h
index 5fb606080849774ae7f371c535e68368a511bcf3..9dd0c4079e462af062e8aa8d16b98965551d1c28 100644
--- a/webkit/glue/web_intent_data.h
+++ b/webkit/glue/web_intent_data.h
@@ -51,7 +51,7 @@ struct WEBKIT_GLUE_EXPORT WebIntentData {
   int64 blob_length;
 
   // Store the file system parameters to create a new file system.
-  FilePath root_path;
+  std::string root_name;
   std::string filesystem_id;
 
   // These enum values indicate which payload data type should be used.
@@ -78,7 +78,7 @@ struct WEBKIT_GLUE_EXPORT WebIntentData {
                 int64 blob_length_in);
   WebIntentData(const string16& action_in,
                 const string16& type_in,
-                const FilePath& root_path_in,
+                const std::string& root_name_in,
                 const std::string& filesystem_id_in);
   ~WebIntentData();
 };