drive: Enable recursive fast-fetch.

chrome/browser/chromeos/drive/file_system_unittest.cc

Index: chrome/browser/chromeos/drive/file_system_unittest.cc
diff --git a/chrome/browser/chromeos/drive/file_system_unittest.cc b/chrome/browser/chromeos/drive/file_system_unittest.cc
index 04e5ba55b82d1415e76ca3c2a5a39abced98e824..86e1e718c7ad98e86f9705c55219b2190f1d69a2 100644
--- a/chrome/browser/chromeos/drive/file_system_unittest.cc
+++ b/chrome/browser/chromeos/drive/file_system_unittest.cc
@@ -380,13 +380,19 @@ TEST_F(FileSystemTest, GetMyDriveRoot) {
 }
 
 TEST_F(FileSystemTest, GetExistingFile) {
+  // Simulate the situation that full feed fetching takes very long time,
+  // to test the "fast fetch" feature is properly working.

[satorux1, 2013/09/06 08:32:25]

"fast fetch" -> recursive "fast fetch"

[kinaba, 2013/09/06 10:12:14]

Done.

+  fake_drive_service_->set_never_return_all_resource_list(true);
+
   const base::FilePath kFilePath(FILE_PATH_LITERAL("drive/root/File 1.txt"));

[satorux1, 2013/09/06 08:32:25]

could you make this one level deeper, to make it more obvious that the recursive
fast fetch is working.

[kinaba, 2013/09/06 10:12:14]

Done.

   scoped_ptr<ResourceEntry> entry = GetResourceEntryByPathSync(kFilePath);
   ASSERT_TRUE(entry);
   EXPECT_EQ("file:2_file_resource_id", entry->resource_id());
 
-  EXPECT_EQ(1, fake_drive_service_->about_resource_load_count());
-  EXPECT_EQ(1, fake_drive_service_->resource_list_load_count());
+  // Directory load for "drive" and "drive/root" that loads about_resource,
+  // and one background full resource list loading.
+  EXPECT_EQ(2, fake_drive_service_->about_resource_load_count());
+  EXPECT_EQ(1, fake_drive_service_->blocked_resource_list_load_count());
 }
 
 TEST_F(FileSystemTest, GetExistingDocument) {
@@ -467,6 +473,9 @@ TEST_F(FileSystemTest, GetInSubSubdir) {
 }
 
 TEST_F(FileSystemTest, GetOrphanFile) {
+  ASSERT_TRUE(LoadFullResourceList());
+
+  // Entry without parents are placed under "drive/other".
   const base::FilePath kFilePath(
       FILE_PATH_LITERAL("drive/other/Orphan File 1.txt"));
   scoped_ptr<ResourceEntry> entry = GetResourceEntryByPathSync(kFilePath);