Launch packaged app with files on Drive on Chrome OS.

webkit/fileapi/isolated_context.cc

Index: webkit/fileapi/isolated_context.cc
diff --git a/webkit/fileapi/isolated_context.cc b/webkit/fileapi/isolated_context.cc
index 56ba1c00dfa50150d9d453195283a124817dc943..79cdddd514980fe3cabdf655594fd432983bbd94 100644
--- a/webkit/fileapi/isolated_context.cc
+++ b/webkit/fileapi/isolated_context.cc
@@ -301,26 +301,14 @@ FileSystemURL IsolatedContext::CrackURL(const GURL& url) const {
   FileSystemURL filesystem_url = FileSystemURL(url);
   if (!filesystem_url.is_valid())
     return FileSystemURL();
-  return CreateCrackedFileSystemURL(filesystem_url.origin(),
-                                    filesystem_url.mount_type(),
-                                    filesystem_url.path());
+  return CrackFileSystemURL(filesystem_url);
 }
 
 FileSystemURL IsolatedContext::CreateCrackedFileSystemURL(
     const GURL& origin,
     FileSystemType type,
     const base::FilePath& path) const {
-  if (!HandlesFileSystemMountType(type))
-    return FileSystemURL();
-
-  std::string mount_name;
-  FileSystemType cracked_type;
-  base::FilePath cracked_path;
-  if (!CrackVirtualPath(path, &mount_name, &cracked_type, &cracked_path))
-    return FileSystemURL();
-
-  return FileSystemURL(origin, type, path,
-                       mount_name, cracked_type, cracked_path);
+  return CrackFileSystemURL(FileSystemURL(origin, type, path));
 }
 
 void IsolatedContext::RevokeFileSystemByPath(const base::FilePath& path_in) {
@@ -390,6 +378,23 @@ IsolatedContext::~IsolatedContext() {
                                        instance_map_.end());
 }
 
+FileSystemURL IsolatedContext::CrackFileSystemURL(
+    const FileSystemURL& url) const {
+  if (!HandlesFileSystemMountType(url.type()))
+    return FileSystemURL();
+
+  std::string mount_name;
+  FileSystemType cracked_type;
+  base::FilePath cracked_path;
+  if (!CrackVirtualPath(url.path(), &mount_name, &cracked_type, &cracked_path))
+    return FileSystemURL();
+
+  return FileSystemURL(
+      url.origin(), url.mount_type(), url.virtual_path(),
+      !url.filesystem_id().empty() ? url.filesystem_id() : mount_name,
+      cracked_type, cracked_path, mount_name);
+}
+
 bool IsolatedContext::UnregisterFileSystem(const std::string& filesystem_id) {
   lock_.AssertAcquired();
   IDToInstance::iterator found = instance_map_.find(filesystem_id);