IPC plumbing for IndexedDB to snapshot metadata to the renderer.

content/common/indexed_db/indexed_db_param_traits.h

Index: content/common/indexed_db/indexed_db_param_traits.h
diff --git a/content/common/indexed_db/indexed_db_param_traits.h b/content/common/indexed_db/indexed_db_param_traits.h
index 0e151b25fd780ad3200b6d753d9b4d2714ad9b57..913070c07713fbb156a5ac3f9d52f29f4e303b8f 100644
--- a/content/common/indexed_db/indexed_db_param_traits.h
+++ b/content/common/indexed_db/indexed_db_param_traits.h
@@ -10,9 +10,12 @@
 #include "ipc/ipc_param_traits.h"
 
 namespace content {
+class IndexedDBDatabaseMetadata;
+class IndexedDBIndexMetadata;
 class IndexedDBKey;
 class IndexedDBKeyPath;
 class IndexedDBKeyRange;
+class IndexedDBObjectStoreMetadata;
 class SerializedScriptValue;
 }
 
@@ -55,6 +58,30 @@ struct ParamTraits<content::IndexedDBKeyPath> {
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct ParamTraits<content::IndexedDBDatabaseMetadata> {
+  typedef content::IndexedDBDatabaseMetadata param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<content::IndexedDBObjectStoreMetadata> {
+  typedef content::IndexedDBObjectStoreMetadata param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<content::IndexedDBIndexMetadata> {
+  typedef content::IndexedDBIndexMetadata param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
 } // namespace IPC
 
 #endif  // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_PARAM_TRAITS_H_