IPC plumbing for IndexedDB to snapshot metadata to the renderer.

content/browser/in_process_webkit/indexed_db_dispatcher_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_
 #pragma once
 
 #include <map>
 
@@ skipping 21 matching lines @@
 class WebIDBDatabase;
 class WebIDBIndex;
 class WebIDBObjectStore;
 class WebIDBTransaction;
 }
 
 namespace content {
 class IndexedDBKey;
 class IndexedDBKeyPath;
 class IndexedDBKeyRange;
+class IndexedDBDatabaseMetadata;
 class SerializedScriptValue;
 }
 
 // Handles all IndexedDB related messages from a particular renderer process.
 class IndexedDBDispatcherHost : public content::BrowserMessageFilter {
  public:
   // Only call the constructor from the UI thread.
   IndexedDBDispatcherHost(int process_id,
                           IndexedDBContextImpl* indexed_db_context);
 
@@ skipping 56 matching lines @@
   typedef std::map<int32, int64> WebIDBTransactionIDToSizeMap;
 
   class DatabaseDispatcherHost {
    public:
     explicit DatabaseDispatcherHost(IndexedDBDispatcherHost* parent);
     ~DatabaseDispatcherHost();
 
     bool OnMessageReceived(const IPC::Message& message, bool *msg_is_ok);
     void Send(IPC::Message* message);
 
+    void OnMetadata(int32 idb_database_id,
+                    content::IndexedDBDatabaseMetadata* metadata);
     void OnName(int32 idb_database_id, string16* name);
     void OnVersion(int32 idb_database_id, string16* version);
     void OnObjectStoreNames(int32 idb_database_id,
                             std::vector<string16>* object_stores);

[michaeln, 2012/06/08 19:46:51]

once the uber OnMetadata() goes in, is the plan to remove these other sync
getters OnName/OnVersion/OnObjectStoreNames/OnUnique... (etc)?

[jsbell, 2012/06/08 20:11:57]

Yes!

     void OnCreateObjectStore(
         const IndexedDBHostMsg_DatabaseCreateObjectStore_Params& params,
         int32* object_store_id, WebKit::WebExceptionCode* ec);
     void OnDeleteObjectStore(int32 idb_database_id,
                              const string16& name,
                              int32 transaction_id,
                              WebKit::WebExceptionCode* ec);
     void OnSetVersion(int32 idb_database_id,
                       int32 thread_id,
                       int32 response_id,
@@ skipping 194 matching lines @@
   scoped_ptr<CursorDispatcherHost> cursor_dispatcher_host_;
   scoped_ptr<TransactionDispatcherHost> transaction_dispatcher_host_;
 
   // Used to dispatch messages to the correct view host.
   int process_id_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBDispatcherHost);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_DISPATCHER_HOST_H_