Introducing gpu::CommandBufferId as a distinct, IdType<...>-based type.

content/browser/download/save_types.h

Index: content/browser/download/save_types.h
diff --git a/content/browser/download/save_types.h b/content/browser/download/save_types.h
index 83d890b8dc9e0ddd3964005af048c254e88a800e..a9ab45c325bc0d5f273245ab85cd48943103e244 100644
--- a/content/browser/download/save_types.h
+++ b/content/browser/download/save_types.h
@@ -13,16 +13,16 @@
 #include <vector>
 
 #include "base/files/file_path.h"
-#include "content/common/id_type.h"
+#include "gpu/command_buffer/common/id_type.h"
 #include "url/gurl.h"
 
 namespace content {
 
 class SavePackage;
-using SavePackageId = IdType32<SavePackage>;
+using SavePackageId = gpu::IdType32<SavePackage>;
 
 class SaveItem;
-using SaveItemId = IdType32<SaveItem>;
+using SaveItemId = gpu::IdType32<SaveItem>;
 
 // Map from save_item_id into final file path.
 using FinalNamesMap = std::map<SaveItemId, base::FilePath>;