Issue paint offset for SVGText, etc.

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/paint/ObjectPaintProperties.h"
 #include "core/paint/PaintPropertyTreePrinter.h"
 #include "platform/graphics/paint/GeometryMapper.h"
@@ skipping 2569 matching lines @@
   setBodyInnerHTML(
       "<svg id='svg' xmlns='http://www.w3.org/2000/svg' width='100px' "
       "height='100px' style='overflow: visible'>"
       "  <rect width='200' height='200' fill='red' />"
       "</svg>");
 
   EXPECT_FALSE(
       getLayoutObjectByElementId("svg")->paintProperties()->overflowClip());
 }
 
+TEST_P(PaintPropertyTreeBuilderTest, SVGTextPaintOffset) {
+  setBodyInnerHTML(
+      "<svg xmlns='http://www.w3.org/2000/svg' width='100px' height='100px'>"
+      "  <text id='text' x='77' y='88'>"
+      "    TEXT"
+      "    <tspan id='tspan' x='20' y='20'>TSPAN</tspan>"
+      "  </text>"
+      "</svg>");
+
+  LayoutObject* text = getLayoutObjectByElementId("text");
+  LayoutObject* tspan = getLayoutObjectByElementId("tspan");
+  LayoutPoint textPaintOffset = text->previousPaintOffset();
+  EXPECT_EQ(toLayoutBox(text)->location(), textPaintOffset);
+  // All inline and text descendants share the same paint offset.
+  EXPECT_EQ(textPaintOffset, text->slowFirstChild()->previousPaintOffset());
+  EXPECT_EQ(textPaintOffset, tspan->previousPaintOffset());
+  EXPECT_EQ(textPaintOffset, tspan->slowFirstChild()->previousPaintOffset());
+}
+
 TEST_P(PaintPropertyTreeBuilderTest,
        ThreadedScrollingDisabledMainThreadScrollReason) {
   setBodyInnerHTML(
       "<style>"
       "  #overflowA {"
       "    position: absolute;"
       "    overflow: scroll;"
       "    width: 20px;"
       "    height: 20px;"
       "  }"
@@ skipping 316 matching lines @@
   EXPECT_EQ(framePreTranslation(),
             childProperties->paintOffsetTranslation()->parent());
   EXPECT_EQ(childProperties->paintOffsetTranslation(),
             childPaintState.transform());
   // This will change once we added clip expansion node.
   EXPECT_EQ(filterProperties->effect()->outputClip(), childPaintState.clip());
   EXPECT_EQ(filterProperties->effect(), childPaintState.effect());
 }
 
 }  // namespace blink