Use WebIDBKeyPath type in WebKit API, implement IndexedDBKeyPath type.

content/browser/in_process_webkit/indexed_db_dispatcher_host.cc

 // 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.
 
 #include "content/browser/in_process_webkit/indexed_db_dispatcher_host.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/in_process_webkit/indexed_db_callbacks.h"
 #include "content/browser/in_process_webkit/indexed_db_context_impl.h"
 #include "content/browser/in_process_webkit/indexed_db_database_callbacks.h"
 #include "content/browser/in_process_webkit/indexed_db_transaction_callbacks.h"
 #include "content/browser/renderer_host/render_message_filter.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDOMStringList.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabase.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabaseError.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBFactory.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBIndex.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKeyPath.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKeyRange.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBObjectStore.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBTransaction.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
 #include "webkit/database/database_util.h"
 #include "webkit/glue/webkit_glue.h"
 
 using content::BrowserMessageFilter;
 using content::BrowserThread;
 using content::UserMetricsAction;
 using webkit_database::DatabaseUtil;
 using WebKit::WebDOMStringList;
 using WebKit::WebExceptionCode;
 using WebKit::WebIDBCallbacks;
 using WebKit::WebIDBCursor;
 using WebKit::WebIDBDatabase;
 using WebKit::WebIDBDatabaseError;
 using WebKit::WebIDBIndex;
 using WebKit::WebIDBKey;
+using WebKit::WebIDBKeyPath;
 using WebKit::WebIDBKeyRange;
 using WebKit::WebIDBObjectStore;
 using WebKit::WebIDBTransaction;
 using WebKit::WebSecurityOrigin;
 using WebKit::WebSerializedScriptValue;
 using WebKit::WebVector;
 
 namespace {
 
 template <class T>
@@ skipping 469 matching lines @@
   parent_->SyncGetter<string16>(&map_, object_id, name, &WebIDBIndex::name);
 }
 
 void IndexedDBDispatcherHost::IndexDispatcherHost::OnStoreName(
     int32 object_id, string16* store_name) {
   parent_->SyncGetter<string16>(
       &map_, object_id, store_name, &WebIDBIndex::storeName);
 }
 
 void IndexedDBDispatcherHost::IndexDispatcherHost::OnKeyPath(
-    int32 object_id, NullableString16* key_path) {
-  parent_->SyncGetter<NullableString16>(
-      &map_, object_id, key_path, &WebIDBIndex::keyPathString);
+    int32 object_id, IndexedDBKeyPath* key_path) {
+  WebIDBIndex* idb_index = parent_->GetOrTerminateProcess(&map_, object_id);
+  if (!idb_index)
+    return;
+
+  *key_path = IndexedDBKeyPath(idb_index->keyPath());
 }
 
 void IndexedDBDispatcherHost::IndexDispatcherHost::OnUnique(
     int32 object_id, bool* unique) {
   parent_->SyncGetter<bool>(&map_, object_id, unique, &WebIDBIndex::unique);
 }
 
 void IndexedDBDispatcherHost::IndexDispatcherHost::OnMultiEntry(
     int32 object_id, bool* multi_entry) {
   parent_->SyncGetter<bool>(
@@ skipping 199 matching lines @@
   parent_->Send(message);
 }
 
 void IndexedDBDispatcherHost::ObjectStoreDispatcherHost::OnName(
     int32 object_id, string16* name) {
   parent_->SyncGetter<string16>(
       &map_, object_id, name, &WebIDBObjectStore::name);
 }
 
 void IndexedDBDispatcherHost::ObjectStoreDispatcherHost::OnKeyPath(
-    int32 object_id, NullableString16* keyPath) {
-  parent_->SyncGetter<NullableString16>(
-      &map_, object_id, keyPath, &WebIDBObjectStore::keyPathString);
+    int32 object_id, IndexedDBKeyPath* key_path) {
+  WebIDBObjectStore* idb_object_store = parent_->GetOrTerminateProcess(
+      &map_,object_id);
+  if (!idb_object_store)
+    return;
+
+  *key_path = IndexedDBKeyPath(idb_object_store->keyPath());
 }
 
 void IndexedDBDispatcherHost::ObjectStoreDispatcherHost::OnIndexNames(
     int32 idb_object_store_id, std::vector<string16>* index_names) {
   WebIDBObjectStore* idb_object_store = parent_->GetOrTerminateProcess(
       &map_, idb_object_store_id);
   if (!idb_object_store)
     return;
 
   WebDOMStringList web_index_names = idb_object_store->indexNames();
@@ skipping 491 matching lines @@
   }
   idb_transaction->didCompleteTaskEvents();
 }
 
 void IndexedDBDispatcherHost::TransactionDispatcherHost::OnDestroyed(
     int32 object_id) {
   transaction_size_map_.erase(object_id);
   transaction_url_map_.erase(object_id);
   parent_->DestroyObject(&map_, object_id);
 }