Fixup a bug about SVG text selection.

Source/core/layout/svg/LayoutSVGInlineText.cpp

Index: Source/core/layout/svg/LayoutSVGInlineText.cpp
diff --git a/Source/core/layout/svg/LayoutSVGInlineText.cpp b/Source/core/layout/svg/LayoutSVGInlineText.cpp
index 69553b53f7abf9be827f39d611b7d3ff8fb6bca5..c7ee7be1498ce4b4cb6ed495a2fda79d181700b4 100644
--- a/Source/core/layout/svg/LayoutSVGInlineText.cpp
+++ b/Source/core/layout/svg/LayoutSVGInlineText.cpp
@@ -184,7 +184,7 @@ PositionWithAffinity LayoutSVGInlineText::positionForPoint(const LayoutPoint& po
             fragment.buildFragmentTransform(fragmentTransform);
             fragmentRect = fragmentTransform.mapRect(fragmentRect);
 
-            float distance = powf(fragmentRect.x() - absolutePoint.x(), 2) +
+            float distance = powf(fragmentRect.x() + fragmentRect.width() / 2 - absolutePoint.x(), 2) +

[fs, 2015/04/21 10:46:20]

Looks like this could now be:

float distance = (fragmentRect.center() -
absolutePoint).diagonalLengthSquared();

                 powf(fragmentRect.y() + fragmentRect.height() / 2 - absolutePoint.y(), 2);
 
             if (distance < closestDistance) {