fix build with enable_web_intents=0 on chromeos

chrome/browser/chromeos/extensions/external_filesystem_apitest.cc

 // Copyright (c) 2012 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 "base/bind.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 248 matching lines @@
   page_complete.WaitUntilClosed();
 
   ASSERT_TRUE(file_handler) << message_;
 
   ASSERT_TRUE(RunFileBrowserHandlerTest("read.html",
                                         "filebrowser_component",
                                         ""))
       << message_;
 }
 
+#if defined(ENABLE_WEB_INTENTS)
 IN_PROC_BROWSER_TEST_F(FileSystemExtensionApiTest, FileBrowserWebIntentTest) {
   // Create a test file inside the ScopedTempDir.
   FilePath test_file = mount_point_dir_.AppendASCII("text_file.xul");
   CreateFileWithContent(test_file, kTestFileContent);
 
   ASSERT_TRUE(RunFileBrowserHandlerTest("intent.html#/tmp/text_file.xul",
                                         "filebrowser_component",
                                         "webintent_handler"))
       << message_;
 }
+#endif
 
 IN_PROC_BROWSER_TEST_F(FileSystemExtensionApiTest, FileBrowserTestWrite) {
   ASSERT_TRUE(RunFileBrowserHandlerTest("write.html",
                                         "filebrowser_component",
                                         "filesystem_handler_write"))
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(FileSystemExtensionApiTest,
                        FileBrowserTestWriteReadOnly) {
@@ skipping 41 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(RemoteFileSystemExtensionApiTest, ContentSearch) {
   // Configure the drive service to return only one search result at a time
   // to simulate paginated searches.
   fake_drive_service_->set_default_max_results(1);
   EXPECT_TRUE(RunExtensionSubtest("filebrowser_component", "remote_search.html",
       kComponentFlags)) << message_;
 }
 
 }  // namespace