[poc] curve-filter

third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

Index: third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp
diff --git a/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp b/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp
index c05c19ddc568ecb1fb37e13496fe2a91266e04ac..fef4908c8abc5b4074c9e4ca0ed2cffd3ad1bc20 100644
--- a/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp
+++ b/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp
@@ -674,23 +674,31 @@ bool PaintLayerCompositor::attachFrameContentLayersToIframeLayer(LayoutPart* lay
     return true;
 }
 
-static void fullyInvalidatePaintRecursive(PaintLayer* layer)
+static void fullyInvalidatePaintRecursive(PaintLayer* layer, bool changeDirectlyCompositedImages)
 {
     if (layer->compositingState() == PaintsIntoOwnBacking) {
         layer->compositedLayerMapping()->setContentsNeedDisplay();
         layer->compositedLayerMapping()->setSquashingContentsNeedDisplay();
+        if (changeDirectlyCompositedImages)
+            layer->compositedLayerMapping()->contentChanged(ImageChanged);
     }
 
     for (PaintLayer* child = layer->firstChild(); child; child = child->nextSibling())
-        fullyInvalidatePaintRecursive(child);
+        fullyInvalidatePaintRecursive(child, changeDirectlyCompositedImages);
 }
 
-void PaintLayerCompositor::fullyInvalidatePaint()
+void PaintLayerCompositor::fullyInvalidatePaint(bool changeDirectlyCompositedImages)
 {
     // We're walking all compositing layers and invalidating them, so there's
     // no need to have up-to-date compositing state.
     DisableCompositingQueryAsserts disabler;
-    fullyInvalidatePaintRecursive(rootLayer());
+    fullyInvalidatePaintRecursive(rootLayer(), changeDirectlyCompositedImages);
+
+    if (!changeDirectlyCompositedImages)
+        return;
+
+    // Setup for, and schedule a full root layer repaint via Page::animator().
+    rootLayer()->setNeedsCompositingInputsUpdate();
 }
 
 PaintLayer* PaintLayerCompositor::rootLayer() const