Add rotation APIs in radians to SkCanvas, SkMatrix

src/core/SkMatrix.cpp

Index: src/core/SkMatrix.cpp
diff --git a/src/core/SkMatrix.cpp b/src/core/SkMatrix.cpp
index 33af64a41fe9f40e61756203b770f75cd1de3ee5..c03562d7e0d7615c8b5c240ca3a5b5c974b9e239 100644
--- a/src/core/SkMatrix.cpp
+++ b/src/core/SkMatrix.cpp
@@ -424,18 +424,50 @@ void SkMatrix::setSinCos(SkScalar sinV, SkScalar cosV) {
     this->setTypeMask(kUnknown_Mask | kOnlyPerspectiveValid_Mask);
 }
 
-void SkMatrix::setRotate(SkScalar degrees, SkScalar px, SkScalar py) {
+void SkMatrix::setRotateRadians(SkScalar radians, SkScalar px, SkScalar py) {
     SkScalar sinV, cosV;
-    sinV = SkScalarSinCos(SkDegreesToRadians(degrees), &cosV);
+    sinV = SkScalarSinCos(radians, &cosV);
     this->setSinCos(sinV, cosV, px, py);
 }
 
-void SkMatrix::setRotate(SkScalar degrees) {
+void SkMatrix::setRotateRadians(SkScalar radians) {
     SkScalar sinV, cosV;
-    sinV = SkScalarSinCos(SkDegreesToRadians(degrees), &cosV);
+    sinV = SkScalarSinCos(radians, &cosV);
     this->setSinCos(sinV, cosV);
 }
 
+bool SkMatrix::preRotateRadians(SkScalar radians, SkScalar px, SkScalar py) {
+    SkMatrix    m;
+    m.setRotateRadians(radians, px, py);
+    return this->preConcat(m);
+}
+
+bool SkMatrix::preRotateRadians(SkScalar radians) {
+    SkMatrix    m;
+    m.setRotateRadians(radians);
+    return this->preConcat(m);
+}
+
+bool SkMatrix::postRotateRadians(SkScalar radians, SkScalar px, SkScalar py) {
+    SkMatrix    m;
+    m.setRotateRadians(radians, px, py);
+    return this->postConcat(m);
+}
+
+bool SkMatrix::postRotateRadians(SkScalar radians) {
+    SkMatrix    m;
+    m.setRotateRadians(radians);
+    return this->postConcat(m);
+}
+
+void SkMatrix::setRotate(SkScalar degrees, SkScalar px, SkScalar py) {
+    this->setRotateRadians(SkDegreesToRadians(degrees), px, py);
+}
+
+void SkMatrix::setRotate(SkScalar degrees) {
+    this->setRotateRadians(SkDegreesToRadians(degrees));
+}
+
 bool SkMatrix::preRotate(SkScalar degrees, SkScalar px, SkScalar py) {
     SkMatrix    m;
     m.setRotate(degrees, px, py);