Set relayoutChildren to 'true' only if size change happens in Table

Source/core/rendering/compositing/GraphicsLayerUpdater.cpp

 /*
  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * 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 72 matching lines @@
 
 void GraphicsLayerUpdater::update(RenderLayer& layer, Vector<RenderLayer*>& layersNeedingPaintInvalidation)
 {
     TRACE_EVENT0("blink", "GraphicsLayerUpdater::update");
     updateRecursive(layer, DoNotForceUpdate, UpdateContext(), layersNeedingPaintInvalidation);
     layer.compositor()->updateRootLayerPosition();
 }
 
 void GraphicsLayerUpdater::updateRecursive(RenderLayer& layer, UpdateType updateType, const UpdateContext& context, Vector<RenderLayer*>& layersNeedingPaintInvalidation)
 {
-    if (layer.hasCompositedLayerMapping()) {
-        CompositedLayerMapping* mapping = layer.compositedLayerMapping();
-
-        if (updateType == ForceUpdate || mapping->needsGraphicsLayerUpdate()) {
+    if (CompositedLayerMapping* compositedLayerMapping = layer.compositedLayerMapping()) {
+        if (updateType == ForceUpdate || compositedLayerMapping->needsGraphicsLayerUpdate()) {
             const RenderLayer* compositingContainer = context.compositingContainer(layer);
             ASSERT(compositingContainer == layer.enclosingLayerWithCompositedLayerMapping(ExcludeSelf));
 
-            if (mapping->updateGraphicsLayerConfiguration())
+            if (compositedLayerMapping->updateGraphicsLayerConfiguration())
                 m_needsRebuildTree = true;
 
-            mapping->updateGraphicsLayerGeometry(compositingContainer, context.compositingStackingContext(), layersNeedingPaintInvalidation);
+            compositedLayerMapping->updateGraphicsLayerGeometry(compositingContainer, context.compositingStackingContext(), layersNeedingPaintInvalidation);
 
-            if (mapping->hasUnpositionedOverflowControlsLayers())
+            if (compositedLayerMapping->hasUnpositionedOverflowControlsLayers())
                 layer.scrollableArea()->positionOverflowControls(IntSize());
 
-            updateType = mapping->updateTypeForChildren(updateType);
-            mapping->clearNeedsGraphicsLayerUpdate();
+            updateType = compositedLayerMapping->updateTypeForChildren(updateType);
+            compositedLayerMapping->clearNeedsGraphicsLayerUpdate();
         }
     }
 
     UpdateContext childContext(context, layer);
     for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
         updateRecursive(*child, updateType, childContext, layersNeedingPaintInvalidation);
 }
 
 #if ENABLE(ASSERT)
 
 void GraphicsLayerUpdater::assertNeedsToUpdateGraphicsLayerBitsCleared(RenderLayer& layer)
 {
-    if (layer.hasCompositedLayerMapping())
-        layer.compositedLayerMapping()->assertNeedsToUpdateGraphicsLayerBitsCleared();
+    if (CompositedLayerMapping* compositedLayerMapping = layer.compositedLayerMapping())
+        compositedLayerMapping->assertNeedsToUpdateGraphicsLayerBitsCleared();
 
     for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
         assertNeedsToUpdateGraphicsLayerBitsCleared(*child);
 }
 
 #endif
 
 } // namespace blink