Use 1 instead of 0 for changestamp at unittest.

chrome/browser/chromeos/drive/drive_file_system_unittest.cc

Index: chrome/browser/chromeos/drive/drive_file_system_unittest.cc
diff --git a/chrome/browser/chromeos/drive/drive_file_system_unittest.cc b/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
index a867e72d978c4b5cfb8526b79d22bae9a7e82d3f..c63c6829a8c2073be099c7fc73945cc5ede46b36 100644
--- a/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
+++ b/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
@@ -622,7 +622,7 @@ class DriveFileSystemTest : public testing::Test {
   void SaveTestFileSystem(SaveTestFileSystemParam param) {
     DriveRootDirectoryProto root;
     root.set_version(kProtoVersion);
-    root.set_largest_changestamp(param == USE_SERVER_TIMESTAMP ? 654321 : 0);
+    root.set_largest_changestamp(param == USE_SERVER_TIMESTAMP ? 654321 : 1);
     DriveDirectoryProto* root_dir = root.mutable_drive_directory();
     DriveEntryProto* dir_base = root_dir->mutable_drive_entry();
     PlatformFileInfoProto* platform_info = dir_base->mutable_file_info();
@@ -1195,9 +1195,7 @@ TEST_F(DriveFileSystemTest, CachedFeedLoadingThenServerFeedLoading) {
 
   // SaveTestFileSystem and "account_metadata.json" have the same changestamp,
   // so no request for new feeds (i.e., call to GetDocuments) should happen.
-  mock_drive_service_->set_account_metadata(
-      google_apis::test_util::LoadJSONFile(
-          "gdata/account_metadata.json").release());
+  // Account metadata is already set up in MockDriveService's constructor.
   EXPECT_CALL(*mock_drive_service_, GetAccountMetadata(_)).Times(1);
   EXPECT_CALL(*mock_webapps_registry_, UpdateFromFeed(_)).Times(1);
   EXPECT_CALL(*mock_drive_service_, GetDocuments(_, _, _, _, _)).Times(0);
@@ -1221,9 +1219,7 @@ TEST_F(DriveFileSystemTest, CachedFeedLoadingThenServerFeedLoading) {
 TEST_F(DriveFileSystemTest, OfflineCachedFeedLoading) {
   SaveTestFileSystem(USE_OLD_TIMESTAMP);
 
-  mock_drive_service_->set_account_metadata(
-      google_apis::test_util::LoadJSONFile(
-          "gdata/account_metadata.json").release());
+  // Account metadata is already set up in MockDriveService's constructor.
   EXPECT_CALL(*mock_drive_service_, GetAccountMetadata(_)).Times(1);
   EXPECT_CALL(*mock_webapps_registry_, UpdateFromFeed(_)).Times(1);
 
@@ -1246,6 +1242,10 @@ TEST_F(DriveFileSystemTest, OfflineCachedFeedLoading) {
   EXPECT_CALL(*mock_drive_service_, GetDocuments(_, _, _, _, _)).Times(1);
 
   file_system_->CheckForUpdates();
+  // Expected value from reading gdata/basic_feed.json.
+  // See MockDriveService's |feed_data_|.
+  EXPECT_CALL(*mock_directory_observer_, OnDirectoryChanged(_)).Times(2);
+
   google_apis::test_util::RunBlockingPoolTask();
 }