Hit test SVG line boxes

third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp

Index: third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp b/third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp
index 66d287986f29ced709aa9921a2c9eb06808c8df6..372d0fb7ae1b94c193b1f92ae17901a5e9850f26 100644
--- a/third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp
+++ b/third_party/WebKit/Source/core/layout/svg/line/SVGInlineTextBox.cpp
@@ -264,12 +264,24 @@ bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation&
             LayoutPoint boxOrigin(x(), y());
             boxOrigin.moveBy(accumulatedOffset);
             LayoutRect rect(boxOrigin, size());
-            // FIXME: both calls to rawValue() below is temporary and should be removed once the transition
-            // to LayoutUnit-based types is complete (crbug.com/321237)
             if (locationInContainer.intersects(rect)) {
-                lineLayoutItem().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
-                if (!result.addNodeToListBasedTestResult(lineLayoutItem().node(), locationInContainer, rect))
-                    return true;
+                LineLayoutSVGInlineText lineLayoutItem = LineLayoutSVGInlineText(this->lineLayoutItem());
+                ASSERT(lineLayoutItem.scalingFactor());
+                float baseline = lineLayoutItem.scaledFont().fontMetrics().floatAscent() / lineLayoutItem.scalingFactor();
+
+                AffineTransform fragmentTransform;
+                for (const auto& fragment : m_textFragments) {
+                    FloatQuad fragmentQuad(FloatRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height));
+                    fragment.buildFragmentTransform(fragmentTransform);
+                    if (!fragmentTransform.isIdentity())
+                        fragmentQuad = fragmentTransform.mapQuad(fragmentQuad);
+
+                    if (fragmentQuad.containsPoint(FloatPoint(locationInContainer.point()))) {
+                        lineLayoutItem.updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
+                        if (!result.addNodeToListBasedTestResult(lineLayoutItem.node(), locationInContainer, rect))
+                            return true;
+                    }
+                }
             }
         }
     }