Fixed file/directory url resolution for external mount point provider.

chrome/browser/extensions/extension_local_filesystem_apitest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_apitest.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/browser.h"
+#include "webkit/fileapi/file_system_context.h"
+#include "webkit/fileapi/file_system_mount_point_provider.h"
+#include "webkit/fileapi/file_system_path_manager.h"
 
 #if defined(OS_CHROMEOS)
 
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, LocalFileSystem) {
+class FileSystemExtensionApiTest : public ExtensionApiTest {
+ public:
+  FileSystemExtensionApiTest() : test_mount_point_("/tmp") {
+  }
+
+  virtual ~FileSystemExtensionApiTest() {}
+
+  // Sets up test environment
+  void AddTmpMountPoint() {
+    // Add tmp mount point.
+    fileapi::FileSystemPathManager* path_manager =
+        browser()->profile()->GetFileSystemContext()->path_manager();
+    fileapi::ExternalFileSystemMountPointProvider* provider =
+        path_manager->external_provider();
+    provider->AddMountPoint(test_mount_point_);
+  }
+
+ private:
+  FilePath test_mount_point_;
+};
+
+IN_PROC_BROWSER_TEST_F(FileSystemExtensionApiTest, LocalFileSystem) {
+  AddTmpMountPoint();
   ASSERT_TRUE(RunComponentExtensionTest("local_filesystem")) << message_;
+
 }
 
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FileBrowserTest) {
+IN_PROC_BROWSER_TEST_F(FileSystemExtensionApiTest, FileBrowserTest) {
+  AddTmpMountPoint();
   ASSERT_TRUE(RunExtensionTest("filesystem_handler")) << message_;
   ASSERT_TRUE(RunComponentExtensionTest("filebrowser_component")) << message_;
 }
 
 #endif