[SyncFS] Clean up V1 drive_file_sync_util.h dependency from V2

chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc

Index: chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc b/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
index b6cc71065bf48944687fc222ef0fffe044fb4a25..08a34b24caf7bdce4a00bcc7a7995bcd62ee75b6 100644
--- a/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
+++ b/chrome/browser/sync_file_system/drive_backend/drive_backend_util.cc
@@ -12,6 +12,7 @@
 #include "chrome/browser/drive/drive_api_util.h"
 #include "chrome/browser/sync_file_system/drive_backend/drive_backend_constants.h"
 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
+#include "chrome/browser/sync_file_system/logger.h"
 #include "google_apis/drive/drive_api_parser.h"
 #include "google_apis/drive/gdata_wapi_parser.h"
 #include "net/base/mime_util.h"
@@ -184,5 +185,72 @@ scoped_ptr<google_apis::ResourceEntry> GetOldestCreatedFolderResource(
   return oldest.Pass();
 }
 
+SyncStatusCode GDataErrorCodeToSyncStatusCode(
+    google_apis::GDataErrorCode error) {
+  // NOTE: Please update DriveFileSyncService::UpdateServiceState when you add
+  // more error code mapping.
+  switch (error) {
+    case google_apis::HTTP_SUCCESS:
+    case google_apis::HTTP_CREATED:
+    case google_apis::HTTP_NO_CONTENT:
+    case google_apis::HTTP_FOUND:
+      return SYNC_STATUS_OK;
+
+    case google_apis::HTTP_NOT_MODIFIED:
+      return SYNC_STATUS_NOT_MODIFIED;
+
+    case google_apis::HTTP_CONFLICT:
+    case google_apis::HTTP_PRECONDITION:
+      return SYNC_STATUS_HAS_CONFLICT;
+
+    case google_apis::HTTP_UNAUTHORIZED:
+      return SYNC_STATUS_AUTHENTICATION_FAILED;
+
+    case google_apis::GDATA_NO_CONNECTION:
+      return SYNC_STATUS_NETWORK_ERROR;
+
+    case google_apis::HTTP_INTERNAL_SERVER_ERROR:
+    case google_apis::HTTP_BAD_GATEWAY:
+    case google_apis::HTTP_SERVICE_UNAVAILABLE:
+    case google_apis::GDATA_CANCELLED:
+    case google_apis::GDATA_NOT_READY:
+      return SYNC_STATUS_SERVICE_TEMPORARILY_UNAVAILABLE;
+
+    case google_apis::HTTP_NOT_FOUND:
+    case google_apis::HTTP_GONE:
+      return SYNC_FILE_ERROR_NOT_FOUND;
+
+    case google_apis::GDATA_FILE_ERROR:
+      return SYNC_FILE_ERROR_FAILED;
+
+    case google_apis::HTTP_FORBIDDEN:
+      return SYNC_STATUS_ACCESS_FORBIDDEN;
+
+    case google_apis::HTTP_RESUME_INCOMPLETE:
+    case google_apis::HTTP_BAD_REQUEST:
+    case google_apis::HTTP_LENGTH_REQUIRED:
+    case google_apis::HTTP_NOT_IMPLEMENTED:
+    case google_apis::GDATA_PARSE_ERROR:
+    case google_apis::GDATA_OTHER_ERROR:
+      return SYNC_STATUS_FAILED;
+
+    case google_apis::GDATA_NO_SPACE:
+      return SYNC_FILE_ERROR_NO_SPACE;
+  }
+
+  // There's a case where DriveService layer returns GDataErrorCode==-1
+  // when network is unavailable. (http://crbug.com/223042)
+  // TODO(kinuko,nhiroki): We should identify from where this undefined error
+  // code is coming.
+  if (error == -1)
+    return SYNC_STATUS_NETWORK_ERROR;
+
+  util::Log(logging::LOG_WARNING,
+            FROM_HERE,
+            "Got unexpected error: %d",
+            static_cast<int>(error));
+  return SYNC_STATUS_FAILED;
+}
+
 }  // namespace drive_backend
 }  // namespace sync_file_system