Add rotateRadians function to AffineTransform

Source/platform/transforms/AffineTransform.cpp

Index: Source/platform/transforms/AffineTransform.cpp
diff --git a/Source/platform/transforms/AffineTransform.cpp b/Source/platform/transforms/AffineTransform.cpp
index effb9df601047f879f925d31953641e05ef94923..44517294e4dadca823d55a9f4211f5c872bee1b1 100644
--- a/Source/platform/transforms/AffineTransform.cpp
+++ b/Source/platform/transforms/AffineTransform.cpp
@@ -134,7 +134,11 @@ AffineTransform& AffineTransform::multiply(const AffineTransform& other)
 AffineTransform& AffineTransform::rotate(double a)
 {
     // angle is in degree. Switch to radian
-    a = deg2rad(a);
+    return rotateRadians(deg2rad(a));
+}
+
+AffineTransform& AffineTransform::rotateRadians(double a)
+{
     double cosAngle = cos(a);
     double sinAngle = sin(a);
     AffineTransform rot(cosAngle, sinAngle, -sinAngle, cosAngle, 0, 0);
@@ -178,7 +182,7 @@ AffineTransform& AffineTransform::scaleNonUniform(double sx, double sy)
 
 AffineTransform& AffineTransform::rotateFromVector(double x, double y)
 {
-    return rotate(rad2deg(atan2(y, x)));
+    return rotateRadians(atan2(y, x));
 }
 
 AffineTransform& AffineTransform::flipX()
@@ -372,7 +376,7 @@ bool AffineTransform::decompose(DecomposedType& decomp) const
     double angle = atan2(m.b(), m.a());
 
     // Remove rotation from matrix
-    m.rotate(rad2deg(-angle));
+    m.rotateRadians(-angle);
 
     // Return results
     decomp.scaleX = sx;
@@ -396,7 +400,7 @@ void AffineTransform::recompose(const DecomposedType& decomp)
     this->setD(decomp.remainderD);
     this->setE(decomp.translateX);
     this->setF(decomp.translateY);
-    this->rotate(rad2deg(decomp.angle));
+    this->rotateRadians(decomp.angle);
     this->scale(decomp.scaleX, decomp.scaleY);
 }