Ensure filter and reflection outsets are applied on paint invalidation rect

third_party/WebKit/LayoutTests/fast/repaint/reflection-invalidation-positioned-child-expected.txt

Index: third_party/WebKit/LayoutTests/fast/repaint/reflection-invalidation-positioned-child-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/repaint/reflection-invalidation-positioned-child-expected.txt b/third_party/WebKit/LayoutTests/fast/repaint/reflection-invalidation-positioned-child-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..40fe540a1d09e1983fc1b0bd9f2ad76d07e90ec9
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/fast/repaint/reflection-invalidation-positioned-child-expected.txt
@@ -0,0 +1,28 @@
+{
+  "bounds": [800, 600],
+  "children": [
+    {
+      "bounds": [800, 600],
+      "contentsOpaque": true,
+      "drawsContent": true,
+      "paintInvalidations": [
+        {
+          "object": "LayoutBlockFlow DIV id='box'",
+          "rect": [0, 0, 100, 220],
+          "reason": "style change"
+        },
+        {
+          "object": "LayoutReplica (anonymous)",
+          "rect": [0, 0, 100, 220],
+          "reason": "location change"
+        },
+        {
+          "object": "LayoutBlockFlow (positioned) DIV id='positioned'",
+          "rect": [400, 10, 50, 200],
+          "reason": "style change"

[Xianzhu, 2016/05/03 19:53:40]

Without the changes in ComputedStyle.cpp (for !cssBoxReflectFilterEnabled()),
this invalidate would be incorrect:
  "rect": [400, 180, 50, 20],
  "reason": "incremental"

+        }
+      ]
+    }
+  ]
+}
+