Remove TiledBacking / TileCache code

Source/WebCore/page/Frame.cpp

Index: Source/WebCore/page/Frame.cpp
diff --git a/Source/WebCore/page/Frame.cpp b/Source/WebCore/page/Frame.cpp
index bab5fbbb07d2c2c0cc4db66e6d54f38d3c145b44..4f8aa756259e44d5fc707606608c09cd8e55c3ad 100644
--- a/Source/WebCore/page/Frame.cpp
+++ b/Source/WebCore/page/Frame.cpp
@@ -109,10 +109,6 @@
 #include "SVGDocumentExtensions.h"
 #endif
 
-#if USE(TILED_BACKING_STORE)
-#include "TiledBackingStore.h"
-#endif
-
 using namespace std;
 
 namespace WebCore {
@@ -175,12 +171,7 @@ inline Frame::Frame(Page* page, HTMLFrameOwnerElement* ownerElement, FrameLoader
     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);
     }
@@ -270,11 +261,6 @@ void Frame::setView(PassRefPtr<FrameView> view)
     // 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)
@@ -814,68 +800,6 @@ void Frame::createView(const IntSize& viewportSize, const Color& backgroundColor
         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)