New FileSystemURL cracking

webkit/fileapi/external_mount_points.cc

Index: webkit/fileapi/external_mount_points.cc
diff --git a/webkit/fileapi/external_mount_points.cc b/webkit/fileapi/external_mount_points.cc
index 9abba4218cfe17fb4bcf2609a2ea7e4ca6690cba..30d16fa8d7374f70d5c02d7b2752c135b83c9eeb 100644
--- a/webkit/fileapi/external_mount_points.cc
+++ b/webkit/fileapi/external_mount_points.cc
@@ -8,6 +8,7 @@
 #include "base/lazy_instance.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
+#include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/remote_file_system_proxy.h"
 
 namespace {
@@ -240,6 +241,25 @@ void ExternalMountPoints::AddMountPointInfosTo(
   }
 }
 
+bool ExternalMountPoints::CanHandleURL(const FileSystemURL& url) const {
+  return url.is_valid() && url.type() == kFileSystemTypeExternal;
+}
+
+FileSystemURL ExternalMountPoints::CrackURL(const FileSystemURL& url) const {
+  if (!CanHandleURL(url))
+    return FileSystemURL();
+
+  DCHECK(!url.is_cracked());
+
+  std::string mount_name;
+  FileSystemType type;
+  FilePath path;
+  if (!CrackVirtualPath(url.path(), &mount_name, &type, &path))
+    return FileSystemURL();
+
+  return FileSystemURL::CreateForCrackedURL(url, mount_name, type, path);
+}
+
 bool ExternalMountPoints::GetVirtualPath(const FilePath& path_in,
                                          FilePath* virtual_path) {
   DCHECK(virtual_path);