Make LocalStorage persistent

chrome/browser/in_process_webkit/dom_storage_dispatcher_host.cc

 // Copyright (c) 2009 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/browser/in_process_webkit/dom_storage_dispatcher_host.h"
 
 #include "base/stl_util-inl.h"
 #include "base/string16.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/in_process_webkit/webkit_context.h"
 #include "chrome/browser/in_process_webkit/webkit_thread.h"
 #include "chrome/common/render_messages.h"
 #include "webkit/api/public/WebKit.h"
 #include "webkit/api/public/WebStorageArea.h"
 #include "webkit/api/public/WebStorageNamespace.h"
 #include "webkit/api/public/WebString.h"
+#include "webkit/glue/webkit_glue.h"
 
 using WebKit::WebStorageArea;
 using WebKit::WebStorageNamespace;
+using WebKit::WebString;
 
 DOMStorageDispatcherHost::DOMStorageDispatcherHost(
     IPC::Message::Sender* message_sender,
     WebKitContext* webkit_context,
     WebKitThread* webkit_thread)
     : webkit_context_(webkit_context),
       webkit_thread_(webkit_thread),
       message_sender_(message_sender),
       last_storage_area_id_(0),
       last_storage_namespace_id_(0),
@@ skipping 244 matching lines @@
     MessageLoop* webkit_loop = webkit_thread_->GetMessageLoop();
     webkit_loop->PostTask(FROM_HERE, NewRunnableMethod(this,
         &DOMStorageDispatcherHost::OnGetItem,
         storage_area_id, key, reply_msg));
     return;
   }
 
   DCHECK(ChromeThread::CurrentlyOn(ChromeThread::WEBKIT));
   WebStorageArea* storage_area = GetStorageArea(storage_area_id);
   CHECK(storage_area);  // TODO(jorlow): Do better than this.
-  WebKit::WebString value = storage_area->getItem(key);
+  WebString value = storage_area->getItem(key);
   ViewHostMsg_DOMStorageGetItem::WriteReplyParams(reply_msg, (string16)value,
                                                   value.isNull());
   Send(reply_msg);
 }
 
 void DOMStorageDispatcherHost::OnSetItem(int64 storage_area_id,
                                          const string16& key,
                                          const string16& value) {
   DCHECK(!shutdown_);
   if (ChromeThread::CurrentlyOn(ChromeThread::IO)) {
@@ skipping 73 matching lines @@
 
 int64 DOMStorageDispatcherHost::AddStorageNamespace(
     WebStorageNamespace* new_namespace) {
   // Create a new ID and insert it into our map.
   int64 new_namespace_id = ++last_storage_namespace_id_;
   DCHECK(!GetStorageNamespace(new_namespace_id));
   storage_namespace_map_[new_namespace_id] = new_namespace;
   return new_namespace_id;
 }
 
-string16 DOMStorageDispatcherHost::GetLocalStoragePath() {
-  // TODO(jorlow): Create a path based on the WebKitContext.
-  string16 path;
-  return path;
+WebString DOMStorageDispatcherHost::GetLocalStoragePath() {
+  const FilePath& path = webkit_context_->data_path();
+  if (path.empty())
+    return WebString();
+  FilePath::StringType path_string = path.AppendASCII("localStorage").value();
+  return webkit_glue::FilePathStringToWebString(path_string);
 }