1 files changed, 30 insertions, 4 deletions

diff --git a/Source/WebCore/page/DOMWindow.cpp b/Source/WebCore/page/DOMWindow.cpp
index c732a10..269c109 100644
--- a/Source/WebCore/page/DOMWindow.cpp
+++ b/Source/WebCore/page/DOMWindow.cpp
@@ -99,6 +99,8 @@
 #if ENABLE(FILE_SYSTEM)
 #include "AsyncFileSystem.h"
 #include "DOMFileSystem.h"
+#include "DOMFileSystemBase.h"
+#include "EntryCallback.h"
 #include "ErrorCallback.h"
 #include "FileError.h"
 #include "FileSystemCallback.h"
@@ -753,6 +755,29 @@ void DOMWindow::requestFileSystem(int type, long long size, PassRefPtr<FileSyste
     LocalFileSystem::localFileSystem().requestFileSystem(document, fileSystemType, size, FileSystemCallbacks::create(successCallback, errorCallback, document), false);
 }
 
+void DOMWindow::resolveLocalFileSystemURI(const String& uri, PassRefPtr<EntryCallback> successCallback, PassRefPtr<ErrorCallback> errorCallback)
+{
+    Document* document = this->document();
+    if (!document)
+        return;
+
+    SecurityOrigin* securityOrigin = document->securityOrigin();
+    KURL completedURL = document->completeURL(uri);
+    if (!AsyncFileSystem::isAvailable() || !securityOrigin->canAccessFileSystem() || !securityOrigin->canRequest(completedURL)) {
+        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SECURITY_ERR));
+        return;
+    }
+
+    AsyncFileSystem::Type type;
+    String filePath;
+    if (!completedURL.isValid() || !DOMFileSystemBase::crackFileSystemURL(completedURL, type, filePath)) {
+        DOMFileSystem::scheduleCallback(document, errorCallback, FileError::create(FileError::SYNTAX_ERR));
+        return;
+    }
+
+    LocalFileSystem::localFileSystem().readFileSystem(document, type, ResolveURICallbacks::create(successCallback, errorCallback, document, filePath));
+}
+
 COMPILE_ASSERT(static_cast<int>(DOMWindow::TEMPORARY) == static_cast<int>(AsyncFileSystem::Temporary), enum_mismatch);
 COMPILE_ASSERT(static_cast<int>(DOMWindow::PERSISTENT) == static_cast<int>(AsyncFileSystem::Persistent), enum_mismatch);
 
@@ -1533,9 +1558,10 @@ bool DOMWindow::removeEventListener(const AtomicString& eventType, EventListener
 void DOMWindow::dispatchLoadEvent()
 {
     RefPtr<Event> loadEvent(Event::create(eventNames().loadEvent, false, false));
-    // The DocumentLoader (and thus its DocumentLoadTiming) might get destroyed while dispatching
-    // the event, so protect it to prevent writing the end time into freed memory.
-    if (RefPtr<DocumentLoader> documentLoader = m_frame ? m_frame->loader()->documentLoader() : 0) {
+    if (m_frame && m_frame->loader()->documentLoader() && !m_frame->loader()->documentLoader()->timing()->loadEventStart) {
+        // The DocumentLoader (and thus its DocumentLoadTiming) might get destroyed while dispatching
+        // the event, so protect it to prevent writing the end time into freed memory.
+        RefPtr<DocumentLoader> documentLoader = m_frame->loader()->documentLoader();
         DocumentLoadTiming* timing = documentLoader->timing();
         dispatchTimedEvent(loadEvent, document(), &timing->loadEventStart, &timing->loadEventEnd);
     } else
@@ -1544,7 +1570,7 @@ void DOMWindow::dispatchLoadEvent()
     // For load events, send a separate load event to the enclosing frame only.
     // This is a DOM extension and is independent of bubbling/capturing rules of
     // the DOM.
-    Element* ownerElement = document()->ownerElement();
+    Element* ownerElement = m_frame ? m_frame->ownerElement() : 0;
     if (ownerElement) {
         RefPtr<Event> ownerEvent = Event::create(eventNames().loadEvent, false, false);
         ownerEvent->setTarget(ownerElement);