Fix geometry mapping issues for float under inline

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp

Index: third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
index c5b5f979fe69e30528d669d964492e8869bcf052..642ed5c9a0d5620b22b50ebd404924d4af200ec1 100644
--- a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
@@ -3220,6 +3220,27 @@ TEST_P(PaintPropertyTreeBuilderTest,
               !div->layoutObject()->paintProperties()->overflowClip());
 }
 
+TEST_P(PaintPropertyTreeBuilderTest, FloatUnderInline) {
+  setBodyInnerHTML(
+      "<span id='span'"
+      "    style='position: relative; top: 100px; left: 200px; opacity: 0.5'>"
+      "  <div id='target' style='float: left; width: 33px; height: 44px'>"
+      "  </div>"
+      "</span>");
+
+  LayoutObject* span = getLayoutObjectByElementId("span");
+  const auto* effect = span->paintProperties()->effect();
+  ASSERT_TRUE(effect);
+  EXPECT_EQ(0.5f, effect->opacity());
+
+  LayoutObject* target = getLayoutObjectByElementId("target");
+  const auto* localBorderBoxProperties =
+      target->paintProperties()->localBorderBoxProperties();
+  ASSERT_TRUE(localBorderBoxProperties);
+  EXPECT_EQ(LayoutPoint(8, 8), localBorderBoxProperties->paintOffset);

[chrishtr, 2016/12/16 22:10:30]

* { margin: 0 }

[Xianzhu, 2016/12/17 05:43:18]

Added an absolute position div container to ensure we will just skip paint
offsets of the inline parent, but not paint offset of the containing block.

+  EXPECT_EQ(effect, localBorderBoxProperties->propertyTreeState.effect());
+}
+
 // A basic sanity check for over-invalidation of paint properties.
 TEST_P(PaintPropertyTreeBuilderTest, NoPaintPropertyUpdateOnBackgroundChange) {
   setBodyInnerHTML("<div id='div' style='background-color: blue'>DIV</div>");