Remove TiledBacking / TileCache code

Source/WebCore/page/Frame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 91 matching lines @@
 
 #include "MathMLNames.h"
 #include "SVGNames.h"
 #include "XLinkNames.h"
 
 #if ENABLE(SVG)
 #include "SVGDocument.h"
 #include "SVGDocumentExtensions.h"
 #endif
 
-#if USE(TILED_BACKING_STORE)
-#include "TiledBackingStore.h"
-#endif
-
 using namespace std;
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, frameCounter, ("Frame"));
 
 static inline Frame* parentFromOwnerElement(HTMLFrameOwnerElement* ownerElement)
 {
@@ skipping 42 matching lines @@
     HTMLNames::init();
     QualifiedName::init();
     MediaFeatureNames::init();
     SVGNames::init();
     XLinkNames::init();
     MathMLNames::init();
     XMLNSNames::init();
     XMLNames::init();
     WebKitFontFamilyNames::init();
 
-    if (!ownerElement) {
-#if USE(TILED_BACKING_STORE)
-        // Top level frame only for now.
-        setTiledBackingStoreEnabled(page->settings()->tiledBackingStoreEnabled());
-#endif
-    } else {
+    if (ownerElement) {
         page->incrementSubframeCount();
         ownerElement->setContentFrame(this);
     }
 
 #ifndef NDEBUG
     frameCounter.increment();
 #endif
 
     // Pause future ActiveDOMObjects if this frame is being created while the page is in a paused state.
     Frame* parent = parentFromOwnerElement(ownerElement);
@@ skipping 69 matching lines @@
         m_view->unscheduleRelayout();
     
     eventHandler()->clear();
 
     m_view = view;
 
     // Only one form submission is allowed per view of a part.
     // Since this part may be getting reused as a result of being
     // pulled from the back/forward cache, reset this flag.
     loader()->resetMultipleFormSubmissionProtection();
-    
-#if USE(TILED_BACKING_STORE)
-    if (m_view && tiledBackingStore())
-        m_view->setPaintsEntireContents(true);
-#endif
 }
 
 void Frame::setDocument(PassRefPtr<Document> newDoc)
 {
     ASSERT(!newDoc || newDoc->frame() == this);
     if (m_doc && m_doc->attached() && !m_doc->inPageCache()) {
         // FIXME: We don't call willRemove here. Why is that OK?
         m_doc->detach();
     }
 
@@ skipping 519 matching lines @@
     if (isMainFrame)
         frameView->setParentVisible(true);
 
     if (ownerRenderer())
         ownerRenderer()->setWidget(frameView);
 
     if (HTMLFrameOwnerElement* owner = ownerElement())
         view()->setCanHaveScrollbars(owner->scrollingMode() != ScrollbarAlwaysOff);
 }
 
-#if USE(TILED_BACKING_STORE)
-void Frame::setTiledBackingStoreEnabled(bool enabled)
-{
-    if (!enabled) {
-        m_tiledBackingStore.clear();
-        return;
-    }
-    if (m_tiledBackingStore)
-        return;
-    m_tiledBackingStore = adoptPtr(new TiledBackingStore(this));
-    m_tiledBackingStore->setCommitTileUpdatesOnIdleEventLoop(true);
-    if (m_view)
-        m_view->setPaintsEntireContents(true);
-}
-
-void Frame::tiledBackingStorePaintBegin()
-{
-    if (!m_view)
-        return;
-    m_view->updateLayoutAndStyleIfNeededRecursive();
-    m_view->flushDeferredRepaints();
-}
-
-void Frame::tiledBackingStorePaint(GraphicsContext* context, const IntRect& rect)
-{
-    if (!m_view)
-        return;
-    m_view->paintContents(context, rect);
-}
-
-void Frame::tiledBackingStorePaintEnd(const Vector<IntRect>& paintedArea)
-{
-    if (!m_page || !m_view)
-        return;
-    unsigned size = paintedArea.size();
-    // Request repaint from the system
-    for (unsigned n = 0; n < size; ++n)
-        m_page->chrome()->invalidateContentsAndRootView(m_view->contentsToRootView(paintedArea[n]), false);
-}
-
-IntRect Frame::tiledBackingStoreContentsRect()
-{
-    if (!m_view)
-        return IntRect();
-    return IntRect(IntPoint(), m_view->contentsSize());
-}
-
-IntRect Frame::tiledBackingStoreVisibleRect()
-{
-    if (!m_page)
-        return IntRect();
-    return m_page->chrome()->client()->visibleRectForTiledBackingStore();
-}
-
-Color Frame::tiledBackingStoreBackgroundColor() const
-{
-    if (!m_view)
-        return Color();
-    return m_view->baseBackgroundColor();
-}
-#endif
-
 String Frame::layerTreeAsText(LayerTreeFlags flags) const
 {
 #if USE(ACCELERATED_COMPOSITING)
     document()->updateLayout();
 
     if (!contentRenderer())
         return String();
 
     return contentRenderer()->compositor()->layerTreeAsText(flags);
 #else
@@ skipping 235 matching lines @@
     buffer->context()->translate(-paintingRect.x(), -paintingRect.y());
     buffer->context()->clip(FloatRect(0, 0, paintingRect.maxX(), paintingRect.maxY()));
 
     m_view->paintContents(buffer->context(), paintingRect);
 
     RefPtr<Image> image = buffer->copyImage();
     return createDragImageFromImage(image.get());
 }
 
 } // namespace WebCore