Make canNavigate() OOPI-friendly

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 754 matching lines @@
 
     RefPtrWillBeRawPtr<LocalFrame> protect(m_frame.get());
 
     if (m_inStopAllLoaders)
         return;
 
     FrameLoadRequest request(passedRequest);
     if (!prepareRequestForThisFrame(request))
         return;
 
-    RefPtrWillBeRawPtr<LocalFrame> targetFrame = request.formState() ? 0 : findFrameForNavigation(AtomicString(request.frameName()), request.formState() ? request.formState()->sourceDocument() : m_frame->document());
+    RefPtrWillBeRawPtr<LocalFrame> targetFrame = toLocalFrame(request.formState() ? nullptr : m_frame->findFrameForNavigation(AtomicString(request.frameName()), *m_frame));
     if (targetFrame && targetFrame.get() != m_frame) {
         request.setFrameName("_self");
         targetFrame->loader().load(request);
         if (Page* page = targetFrame->page())
             page->chrome().focus();
         return;
     }
 
     setReferrerForFrameRequest(request.resourceRequest(), request.shouldSendReferrer(), request.originDocument());
 
@@ skipping 370 matching lines @@
         && !m_frame->document()->isFrameSet();
 }
 
 void FrameLoader::scrollToFragmentWithParentBoundary(const KURL& url)
 {
     FrameView* view = m_frame->view();
     if (!view)
         return;
 
     // Leaking scroll position to a cross-origin ancestor would permit the so-called "framesniffing" attack.
-    RefPtrWillBeRawPtr<LocalFrame> boundaryFrame = url.hasFragmentIdentifier() ? m_frame->document()->findUnsafeParentScrollPropagationBoundary() : 0;
+    RefPtrWillBeRawPtr<Frame> boundaryFrame = url.hasFragmentIdentifier() ? m_frame->findUnsafeParentScrollPropagationBoundary() : 0;
 
-    if (boundaryFrame)
-        boundaryFrame->view()->setSafeToPropagateScrollToParent(false);
+    // FIXME: Handle RemoteFrames
+    if (boundaryFrame && boundaryFrame->isLocalFrame())
+        toLocalFrame(boundaryFrame.get())->view()->setSafeToPropagateScrollToParent(false);
 
     view->scrollToFragment(url);
 
-    if (boundaryFrame)
-        boundaryFrame->view()->setSafeToPropagateScrollToParent(true);
+    if (boundaryFrame && boundaryFrame->isLocalFrame())
+        toLocalFrame(boundaryFrame.get())->view()->setSafeToPropagateScrollToParent(true);
 }
 
 bool FrameLoader::shouldClose()
 {
     Page* page = m_frame->page();
     if (!page || !page->chrome().canRunBeforeUnloadConfirmPanel())
         return true;
 
     // Store all references to each subframe in advance since beforeunload's event handler may modify frame
     WillBeHeapVector<RefPtrWillBeMember<LocalFrame> > targetFrames;
@@ skipping 179 matching lines @@
 bool FrameLoader::shouldTreatURLAsSrcdocDocument(const KURL& url) const
 {
     if (!equalIgnoringCase(url.string(), "about:srcdoc"))
         return false;
     HTMLFrameOwnerElement* ownerElement = m_frame->deprecatedLocalOwner();
     if (!isHTMLIFrameElement(ownerElement))
         return false;
     return ownerElement->fastHasAttribute(srcdocAttr);
 }
 
-LocalFrame* FrameLoader::findFrameForNavigation(const AtomicString& name, Document* activeDocument)
-{
-    ASSERT(activeDocument);
-    Frame* frame = m_frame->tree().find(name);
-    if (!frame || !frame->isLocalFrame() || !activeDocument->canNavigate(toLocalFrame(*frame)))
-        return 0;
-    return toLocalFrame(frame);
-}
-
 void FrameLoader::loadHistoryItem(HistoryItem* item, FrameLoadType frameLoadType, HistoryLoadType historyLoadType, ResourceRequestCachePolicy cachePolicy)
 {
     RefPtrWillBeRawPtr<LocalFrame> protect(m_frame.get());
     if (m_frame->page()->defersLoading()) {
         m_deferredHistoryLoad = DeferredHistoryLoad(item, historyLoadType, cachePolicy);
         return;
     }
 
     m_provisionalItem = item;
     if (historyLoadType == HistorySameDocumentLoad) {
@@ skipping 29 matching lines @@
     if (!m_frame->script().canExecuteScripts(NotAboutToExecuteScript))
         return;
 
     client()->dispatchDidClearWindowObjectInMainWorld();
 }
 
 SandboxFlags FrameLoader::effectiveSandboxFlags() const
 {
     SandboxFlags flags = m_forcedSandboxFlags;
     // FIXME: We need a way to propagate sandbox flags to out-of-process frames.
-    Frame* parentFrame = m_frame->tree().parent();
-    if (parentFrame && parentFrame->isLocalFrame())
-        flags |= toLocalFrame(parentFrame)->document()->sandboxFlags();
     if (FrameOwner* frameOwner = m_frame->owner())
         flags |= frameOwner->sandboxFlags();
     return flags;
 }
 
 bool FrameLoader::shouldEnforceStrictMixedContentChecking() const
 {
     Frame* parentFrame = m_frame->tree().parent();
     if (!parentFrame)
         return false;
 
     // FIXME: We need a way to propagate strict mixed content checking flags to
     // out-of-process frames. For now, we'll always enforce.
     if (!parentFrame->isLocalFrame())
         return true;
 
     return toLocalFrame(parentFrame)->document()->shouldEnforceStrictMixedContentChecking();
 }
 
 } // namespace blink