Move Frame to the Oilpan heap.

Source/core/page/FocusController.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 22 matching lines @@
 #include "core/dom/Element.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/NodeTraversal.h"
 #include "core/dom/Range.h"
 #include "core/dom/shadow/ElementShadow.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/htmlediting.h" // For firstPositionInOrBeforeNode
 #include "core/events/Event.h"
+#include "core/frame/FrameProtector.h"
+#include "core/frame/FrameView.h"
 #include "core/frame/LocalDOMWindow.h"
-#include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLAreaElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLPlugInElement.h"
 #include "core/html/HTMLShadowElement.h"
 #include "core/html/HTMLTextFormControlElement.h"
 #include "core/page/Chrome.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/EventHandler.h"
 #include "core/page/FrameTree.h"
@@ skipping 167 matching lines @@
 }
 
 FocusController::FocusController(Page* page)
     : m_page(page)
     , m_isActive(false)
     , m_isFocused(false)
     , m_isChangingFocusedFrame(false)
 {
 }
 
-PassOwnPtr<FocusController> FocusController::create(Page* page)
+PassOwnPtrWillBeRawPtr<FocusController> FocusController::create(Page* page)
 {
-    return adoptPtr(new FocusController(page));
+    return adoptPtrWillBeNoop(new FocusController(page));
 }
 
-void FocusController::setFocusedFrame(PassRefPtr<Frame> frame)
+void FocusController::setFocusedFrame(PassRefPtrWillBeRawPtr<Frame> frame)
 {
     ASSERT(!frame || frame->page() == m_page);
     if (m_focusedFrame == frame || m_isChangingFocusedFrame)
         return;
 
     m_isChangingFocusedFrame = true;
 
-    RefPtr<LocalFrame> oldFrame = (m_focusedFrame && m_focusedFrame->isLocalFrame()) ? toLocalFrame(m_focusedFrame.get()) : 0;
-    RefPtr<LocalFrame> newFrame = (frame && frame->isLocalFrame()) ? toLocalFrame(frame.get()) : 0;
+    LocalFrame* oldFrame = (m_focusedFrame && m_focusedFrame->isLocalFrame()) ? toLocalFrame(m_focusedFrame.get()) : 0;
+    FrameProtector protectOld(oldFrame);
+
+    LocalFrame* newFrame = (frame && frame->isLocalFrame()) ? toLocalFrame(frame.get()) : 0;
+    FrameProtector protectNew(newFrame);
 
     m_focusedFrame = frame.get();
 
     // Now that the frame is updated, fire events and update the selection focused states of both frames.
     if (oldFrame && oldFrame->view()) {
         oldFrame->selection().setFocused(false);
         oldFrame->domWindow()->dispatchEvent(Event::create(EventTypeNames::blur));
     }
 
     if (newFrame && newFrame->view() && isFocused()) {
         newFrame->selection().setFocused(true);
         newFrame->domWindow()->dispatchEvent(Event::create(EventTypeNames::focus));
     }
 
     m_isChangingFocusedFrame = false;
 
-    m_page->chrome().client().focusedFrameChanged(newFrame.get());
+    m_page->chrome().client().focusedFrameChanged(newFrame);
 }
 
-void FocusController::focusDocumentView(PassRefPtr<Frame> frame)
+void FocusController::focusDocumentView(PassRefPtrWillBeRawPtr<Frame> frame)
 {
     ASSERT(!frame || frame->page() == m_page);
     if (m_focusedFrame == frame)
         return;
 
-    RefPtr<LocalFrame> focusedFrame = (m_focusedFrame && m_focusedFrame->isLocalFrame()) ? toLocalFrame(m_focusedFrame.get()) : 0;
+    LocalFrame* focusedFrame = (m_focusedFrame && m_focusedFrame->isLocalFrame()) ? toLocalFrame(m_focusedFrame.get()) : 0;
+    FrameProtector protect(focusedFrame);
     if (focusedFrame && focusedFrame->view()) {
         RefPtrWillBeRawPtr<Document> document = focusedFrame->document();
         Element* focusedElement = document ? document->focusedElement() : 0;
         if (focusedElement) {
             focusedElement->dispatchBlurEvent(0);
             if (focusedElement == document->focusedElement()) {
                 focusedElement->dispatchFocusOutEvent(EventTypeNames::focusout, 0);
                 if (focusedElement == document->focusedElement())
                     focusedElement->dispatchFocusOutEvent(EventTypeNames::DOMFocusOut, 0);
             }
         }
     }
 
-    RefPtr<LocalFrame> newFocusedFrame = (frame && frame->isLocalFrame()) ? toLocalFrame(frame.get()) : 0;
+    LocalFrame* newFocusedFrame = (frame && frame->isLocalFrame()) ? toLocalFrame(frame.get()) : 0;
+    FrameProtector protectNew(newFocusedFrame);
     if (newFocusedFrame && newFocusedFrame->view()) {
         RefPtrWillBeRawPtr<Document> document = newFocusedFrame->document();
         Element* focusedElement = document ? document->focusedElement() : 0;
         if (focusedElement) {
             focusedElement->dispatchFocusEvent(0, FocusTypePage);
             if (focusedElement == document->focusedElement()) {
                 document->focusedElement()->dispatchFocusInEvent(EventTypeNames::focusin, 0);
                 if (focusedElement == document->focusedElement())
                     document->focusedElement()->dispatchFocusInEvent(EventTypeNames::DOMFocusIn, 0);
             }
@@ skipping 370 matching lines @@
 
     if (!enclosingTextFormControl(selectionStartNode))
         return;
 
     if (selectionStartNode->isInShadowTree() && selectionStartNode->shadowHost() == newFocusedNode)
         return;
 
     selection.clear();
 }
 
-bool FocusController::setFocusedElement(Element* element, PassRefPtr<Frame> newFocusedFrame, FocusType type)
+bool FocusController::setFocusedElement(Element* element, PassRefPtrWillBeRawPtr<Frame> newFocusedFrame, FocusType type)
 {
-    RefPtr<LocalFrame> oldFocusedFrame = toLocalFrame(focusedFrame());
+    LocalFrame* oldFocusedFrame = toLocalFrame(focusedFrame());
+    FrameProtector protectOld(oldFocusedFrame);
     RefPtrWillBeRawPtr<Document> oldDocument = oldFocusedFrame ? oldFocusedFrame->document() : 0;
 
     Element* oldFocusedElement = oldDocument ? oldDocument->focusedElement() : 0;
     if (element && oldFocusedElement == element)
         return true;
 
     // FIXME: Might want to disable this check for caretBrowsing
     if (oldFocusedElement && oldFocusedElement->isRootEditableElement() && !relinquishesEditingFocus(oldFocusedElement))
         return false;
 
     m_page->chrome().client().willSetInputMethodState();
 
     RefPtrWillBeRawPtr<Document> newDocument = nullptr;
     if (element)
         newDocument = &element->document();
     else if (newFocusedFrame && newFocusedFrame->isLocalFrame())
         newDocument = toLocalFrame(newFocusedFrame.get())->document();
 
     if (newDocument && oldDocument == newDocument && newDocument->focusedElement() == element)
         return true;
 
-    clearSelectionIfNeeded(oldFocusedFrame.get(), toLocalFrame(newFocusedFrame.get()), element);
+    clearSelectionIfNeeded(oldFocusedFrame, toLocalFrame(newFocusedFrame.get()), element);
 
     if (oldDocument && oldDocument != newDocument)
         oldDocument->setFocusedElement(nullptr);
 
     if (newFocusedFrame && !newFocusedFrame->page()) {
         setFocusedFrame(nullptr);
         return false;
     }
     setFocusedFrame(newFocusedFrame);
 
@@ skipping 206 matching lines @@
         consumed = advanceFocusDirectionallyInContainer(container, startingRect, type);
         startingRect = nodeRectInAbsoluteCoordinates(container, true /* ignore border */);
         container = scrollableEnclosingBoxOrParentFrameForNodeInDirection(type, container);
         if (container && container->isDocumentNode())
             toDocument(container)->updateLayoutIgnorePendingStylesheets();
     } while (!consumed && container);
 
     return consumed;
 }
 
+void FocusController::trace(Visitor* visitor)
+{
+    visitor->trace(m_focusedFrame);
+}
+
 } // namespace blink