needsPaintInvalidation() should not return true for selection.

third_party/WebKit/Source/core/layout/LayoutBox.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBox.cpp b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
index 3d8e6aff6c568f4f62405a253c1bb7be86cca4a2..518b58241a1efde6ecd32c490278996d2a1551f7 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBox.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBox.cpp
@@ -190,7 +190,7 @@ void LayoutBox::styleWillChange(StyleDifference diff,
     // The background of the root element or the body element could propagate up
     // to the canvas. Just dirty the entire canvas when our style changes
     // substantially.
-    if ((diff.needsPaintInvalidation() || diff.needsLayout()) && node() &&
+    if ((diff.needsFullPaintInvalidation() || diff.needsLayout()) && node() &&
         (isHTMLHtmlElement(*node()) || isHTMLBodyElement(*node()))) {
       view()->setShouldDoFullPaintInvalidation();
 
@@ -283,7 +283,7 @@ void LayoutBox::styleDidChange(StyleDifference diff,
   }
 
   // Our opaqueness might have changed without triggering layout.
-  if (diff.needsPaintInvalidation()) {
+  if (diff.needsFullPaintInvalidation()) {
     LayoutObject* parentToInvalidate = parent();
     for (unsigned i = 0;
          i < backgroundObscurationTestMaxDepth && parentToInvalidate; ++i) {