Repaint on interest rect change

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 2384 matching lines @@
 void FrameView::updateWidgetPositionsIfNeeded()
 {
     if (!m_needsUpdateWidgetPositions)
         return;
 
     m_needsUpdateWidgetPositions = false;
 
     updateWidgetPositions();
 }
 
-void FrameView::updateAllLifecyclePhases(const LayoutRect* interestRect)
+void FrameView::updateAllLifecyclePhases(const IntRect* interestRect)
 {
     frame().localFrameRoot()->view()->updateLifecyclePhasesInternal(AllPhases, interestRect);
 }
 
 // TODO(chrishtr): add a scrolling update lifecycle phase.
 void FrameView::updateLifecycleToCompositingCleanPlusScrolling()
 {
     frame().localFrameRoot()->view()->updateLifecyclePhasesInternal(OnlyUpToCompositingCleanPlusScrolling, nullptr);
 }
 
 void FrameView::updateLifecycleToLayoutClean()
 {
     frame().localFrameRoot()->view()->updateLifecyclePhasesInternal(OnlyUpToLayoutClean, nullptr);
 }
 
-void FrameView::updateLifecyclePhasesInternal(LifeCycleUpdateOption phases, const LayoutRect* interestRect)
+void FrameView::updateLifecyclePhasesInternal(LifeCycleUpdateOption phases, const IntRect* interestRect)
 {
     // This must be called from the root frame, since it recurses down, not up.
     // Otherwise the lifecycles of the frames might be out of sync.
     ASSERT(m_frame->isLocalRoot());
 
     // Updating layout can run script, which can tear down the FrameView.
     RefPtrWillBeRawPtr<FrameView> protector(this);
 
     updateStyleAndLayoutIfNeededRecursive();
     ASSERT(lifecycle().state() >= DocumentLifecycle::LayoutClean);
@@ skipping 45 matching lines @@
 
 void FrameView::updatePaintProperties()
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
 
     forAllFrameViews([](FrameView& frameView) { frameView.lifecycle().advanceTo(DocumentLifecycle::InUpdatePaintProperties); });
     PaintPropertyTreeBuilder().buildPropertyTrees(*this);
     forAllFrameViews([](FrameView& frameView) { frameView.lifecycle().advanceTo(DocumentLifecycle::UpdatePaintPropertiesClean); });
 }
 
-void FrameView::synchronizedPaint(const LayoutRect* interestRect)
+void FrameView::synchronizedPaint(const IntRect* interestRect)
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled());
     ASSERT(frame() == page()->mainFrame() || (!frame().tree().parent()->isLocalFrame()));
 
     LayoutView* view = layoutView();
     ASSERT(view);
     // TODO(chrishtr): figure out if there can be any GraphicsLayer above this one that draws content.
     GraphicsLayer* rootGraphicsLayer = view->layer()->graphicsLayerBacking();
     forAllFrameViews([](FrameView& frameView) { frameView.lifecycle().advanceTo(DocumentLifecycle::InPaint); });
 
     // A null graphics layer can occur for painting of SVG images that are not parented into the main frame tree.
     if (rootGraphicsLayer) {
         synchronizedPaintRecursively(rootGraphicsLayer, interestRect);
     }
 
     forAllFrameViews([](FrameView& frameView) {
         frameView.lifecycle().advanceTo(DocumentLifecycle::PaintClean);
         frameView.layoutView()->layer()->clearNeedsRepaintRecursively();
     });
 }
 
-void FrameView::synchronizedPaintRecursively(GraphicsLayer* graphicsLayer, const LayoutRect* interestRect)
+void FrameView::synchronizedPaintRecursively(GraphicsLayer* graphicsLayer, const IntRect* interestRect)
 {
     ASSERT(graphicsLayer->paintController());
     GraphicsContext context(*graphicsLayer->paintController());
 
     // TODO(chrishtr): fix unit tests to not inject one-off interest rects.
-    if (interestRect)
-        graphicsLayer->paint(context, roundedIntRect(*interestRect));
-    else
-        graphicsLayer->paintIfNeeded(context);
+    graphicsLayer->paint(context, interestRect);
 
     if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled())
         graphicsLayer->paintController()->commitNewDisplayItems();
 
     for (auto& child : graphicsLayer->children())
         synchronizedPaintRecursively(child, interestRect);
 }
 
 void FrameView::compositeForSlimmingPaintV2()
 {
@@ skipping 1549 matching lines @@
 }
 
 bool FrameView::canThrottleRendering() const
 {
     if (!RuntimeEnabledFeatures::renderingPipelineThrottlingEnabled())
         return false;
     return m_hiddenForThrottling && m_crossOriginForThrottling;
 }
 
 } // namespace blink