drive: Add showroot=true to WAPI feed URLs and ignore "no parent" entries.

chrome/browser/google_apis/fake_drive_service_unittest.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 "chrome/browser/google_apis/fake_drive_service.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 207 matching lines @@
       false, // shared_with_me
       fake_service_.GetRootResourceId(),  // directory_resource_id
       base::Bind(&test_util::CopyResultsFromGetResourceListCallback,
                  &error,
                  &resource_list));
   message_loop_.RunUntilIdle();
 
   EXPECT_EQ(HTTP_SUCCESS, error);
   ASSERT_TRUE(resource_list);
   // Do some sanity check. There are 7 entries in the root directory.
-  EXPECT_EQ(7U, resource_list->entries().size());
+  EXPECT_EQ(8U, resource_list->entries().size());
   EXPECT_EQ(1, fake_service_.resource_list_load_count());
 }
 
 TEST_F(FakeDriveServiceTest, GetResourceList_Search) {
   ASSERT_TRUE(fake_service_.LoadResourceListForWapi(
       "chromeos/gdata/root_feed.json"));
 
   GDataErrorCode error = GDATA_OTHER_ERROR;
   scoped_ptr<ResourceList> resource_list;
   fake_service_.GetResourceList(
@@ skipping 1296 matching lines @@
 
   EXPECT_EQ(HTTP_CREATED, response.code);
   EXPECT_TRUE(entry.get());
   EXPECT_EQ(15L, entry->file_size());
   EXPECT_TRUE(Exists(entry->resource_id()));
 }
 
 }  // namespace
 
 }  // namespace google_apis