gdata: Remove GDataCache::UpdateCacheWithSubDirectoryType()

chrome/browser/chromeos/gdata/gdata_cache.h

Index: chrome/browser/chromeos/gdata/gdata_cache.h
diff --git a/chrome/browser/chromeos/gdata/gdata_cache.h b/chrome/browser/chromeos/gdata/gdata_cache.h
index aeccbc57c97540666b00e836c1b3e90c0523a4de..b18d38ae9d9adb9395fda4974484b59a1c9af5c3 100644
--- a/chrome/browser/chromeos/gdata/gdata_cache.h
+++ b/chrome/browser/chromeos/gdata/gdata_cache.h
@@ -475,13 +475,6 @@ class GDataCache {
                            bool* success,
                            GDataCache::CacheEntry* cache_entry);
 
-  // Wrapper around GDataCacheMetadata::UpdateCache(). This function takes
-  // |sub_dir_type| and updates the cache per |cache_entry| and |sub_dir_type|.
-  void UpdateCacheWithSubDirectoryType(
-      const std::string& resource_id,
-      CacheSubDirectoryType sub_dir_type,
-      const CacheEntry& cache_entry);
-
   // The root directory of the cache (i.e. <user_profile_dir>/GCache/v1).
   const FilePath cache_root_path_;
   // Paths for all subdirectories of GCache, one for each