Coverity: Fix missing const on RendererWebIDBIndexImpl overridden methods.

chrome/renderer/renderer_webidbdatabase_impl.cc

 // Copyright (c) 2010 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 "chrome/renderer/renderer_webidbdatabase_impl.h"
 
 #include "chrome/common/render_messages.h"
 #include "chrome/renderer/render_thread.h"
 #include "chrome/renderer/indexed_db_dispatcher.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 
 using WebKit::WebDOMStringList;
 using WebKit::WebFrame;
 using WebKit::WebIDBCallbacks;
 using WebKit::WebString;
 using WebKit::WebVector;
 
 RendererWebIDBDatabaseImpl::RendererWebIDBDatabaseImpl(int32 idb_database_id)
     : idb_database_id_(idb_database_id) {
 }
 
 RendererWebIDBDatabaseImpl::~RendererWebIDBDatabaseImpl() {
   // TODO(jorlow): Is it possible for this to be destroyed but still have
   //               pending callbacks?  If so, fix!
   RenderThread::current()->Send(new ViewHostMsg_IDBDatabaseDestroyed(
       idb_database_id_));
 }
 
-WebString RendererWebIDBDatabaseImpl::name() {
+WebString RendererWebIDBDatabaseImpl::name() const {
   string16 result;
   RenderThread::current()->Send(
       new ViewHostMsg_IDBDatabaseName(idb_database_id_, &result));
   return result;
 }
 
-WebString RendererWebIDBDatabaseImpl::description() {
+WebString RendererWebIDBDatabaseImpl::description() const {
   string16 result;
   RenderThread::current()->Send(
       new ViewHostMsg_IDBDatabaseDescription(idb_database_id_, &result));
   return result;
 }
 
-WebString RendererWebIDBDatabaseImpl::version() {
+WebString RendererWebIDBDatabaseImpl::version() const {
   string16 result;
   RenderThread::current()->Send(
       new ViewHostMsg_IDBDatabaseVersion(idb_database_id_, &result));
   return result;
 }
 
-WebDOMStringList RendererWebIDBDatabaseImpl::objectStores() {
+WebDOMStringList RendererWebIDBDatabaseImpl::objectStores() const {
   std::vector<string16> result;
   RenderThread::current()->Send(
       new ViewHostMsg_IDBDatabaseObjectStores(idb_database_id_, &result));
   WebDOMStringList webResult;
   for (std::vector<string16>::const_iterator it = result.begin();
        it != result.end(); ++it) {
     webResult.append(*it);
   }
   return webResult;
 }
 
 void RendererWebIDBDatabaseImpl::createObjectStore(
     const WebString& name, const WebString& key_path, bool auto_increment,
     WebIDBCallbacks* callbacks) {
   IndexedDBDispatcher* dispatcher =
       RenderThread::current()->indexed_db_dispatcher();
   dispatcher->RequestIDBDatabaseCreateObjectStore(
       name, key_path, auto_increment, callbacks, idb_database_id_);
 }