Fold SVGPoint::MatrixTransform

Said method is only an open-coded version AffineTransform::MapPoint().
Since it only has a single user, fold it into that.

Change-Id: I1bac1d612bfbf2910b574735af5e3cebe51466b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2643329
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Stephen Chenney <schenney@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846124}

third_party/blink/renderer/core/svg/svg_point.cc

@@ -31,7 +31,6 @@
 #include "third_party/blink/renderer/core/svg/svg_point.h"
 
 #include "third_party/blink/renderer/platform/heap/heap.h"
-#include "third_party/blink/renderer/platform/transforms/affine_transform.h"
 #include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
 #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
 
@@ -51,13 +50,6 @@ SVGPropertyBase* SVGPoint::CloneForAnimation(const String& value) const {
   return nullptr;
 }
 
-FloatPoint SVGPoint::MatrixTransform(const AffineTransform& transform) const {
-  double new_x, new_y;
-  transform.Map(static_cast<double>(X()), static_cast<double>(Y()), new_x,
-                new_y);
-  return FloatPoint::NarrowPrecision(new_x, new_y);
-}
-
 String SVGPoint::ValueAsString() const {
   StringBuilder builder;
   builder.AppendNumber(X());

third_party/blink/renderer/core/svg/svg_point.h

@@ -37,7 +37,6 @@
 
 namespace blink {
 
-class AffineTransform;
 class SVGPointTearOff;
 
 class SVGPoint final : public SVGListablePropertyBase {
@@ -58,8 +57,6 @@ class SVGPoint final : public SVGListablePropertyBase {
   void SetX(float f) { value_.SetX(f); }
   void SetY(float f) { value_.SetY(f); }
 
-  FloatPoint MatrixTransform(const AffineTransform&) const;
-
   String ValueAsString() const override;
 
   void Add(const SVGPropertyBase*, const SVGElement*) override;

third_party/blink/renderer/core/svg/svg_point_tear_off.cc

@@ -62,8 +62,7 @@ void SVGPointTearOff::setY(float f, ExceptionState& exception_state) {
 }
 
 SVGPointTearOff* SVGPointTearOff::matrixTransform(SVGMatrixTearOff* matrix) {
-  FloatPoint point = Target()->MatrixTransform(matrix->Value());
-  return CreateDetached(point);
+  return CreateDetached(matrix->Value().MapPoint(Target()->Value()));
 }
 
 SVGPointTearOff* SVGPointTearOff::CreateDetached(const FloatPoint& point) {