Invalidate line break selection rects when selected.

Source/core/layout/LayoutBR.cpp

Index: Source/core/layout/LayoutBR.cpp
diff --git a/Source/core/layout/LayoutBR.cpp b/Source/core/layout/LayoutBR.cpp
index 7ddd1277d1311dfba5bf9c31b24f1d073132a336..5c007c41a7eac9980f41e0344f48415df70400c6 100644
--- a/Source/core/layout/LayoutBR.cpp
+++ b/Source/core/layout/LayoutBR.cpp
@@ -44,6 +44,17 @@ LayoutBR::~LayoutBR()
 {
 }
 
+LayoutRect LayoutBR::selectionRectForPaintInvalidation(const LayoutBoxModelObject* paintInvalidationContainer) const
+{
+    if (!RuntimeEnabledFeatures::selectionPaintingWithoutSelectionGapsEnabled())
+        return LayoutRect();
+
+    // When selected we need to return a rect that includes the space
+    // highlighted to illustrate a newline.
+    return (selectionState() == SelectionNone) ? LayoutRect()

[chrishtr, 2015/09/18 21:08:03]

Return LayoutText::selectionRectForPaintInvalidation(paintInvalidationContainer)
unconditionally, should have the same semantics.

[wkorman, 2015/09/18 21:26:57]

Done.

+        : LayoutText::selectionRectForPaintInvalidation(paintInvalidationContainer);
+}
+
 int LayoutBR::lineHeight(bool firstLine) const
 {
     const ComputedStyle& style = styleRef(firstLine && document().styleEngine().usesFirstLineRules());