Implement rotate*() methods in DOMMatrix.

Source/core/dom/DOMMatrix.cpp

Index: Source/core/dom/DOMMatrix.cpp
diff --git a/Source/core/dom/DOMMatrix.cpp b/Source/core/dom/DOMMatrix.cpp
index 22a9df9770576e61f14d7bf6247da6f41821f074..93839ac1de68b58b57a091221852a8ec46461b7c 100644
--- a/Source/core/dom/DOMMatrix.cpp
+++ b/Source/core/dom/DOMMatrix.cpp
@@ -100,4 +100,37 @@ DOMMatrix* DOMMatrix::scaleNonUniformSelf(double sx, double sy, double sz,
     return this;
 }
 
+DOMMatrix* DOMMatrix::rotateSelf(double angle, double ox, double oy)
+{
+    bool hasTranslation = (ox || oy);
+
+    if (hasTranslation)
+        translateSelf(ox, oy);
+
+    m_matrix.rotate(angle);
+
+    if (hasTranslation)
+        translateSelf(-ox, -oy);
+
+    return this;
+}
+
+DOMMatrix* DOMMatrix::rotateFromVectorSelf(double x, double y)
+{
+    m_matrix.rotateFromVector(x, y);
+
+    return this;
+}
+
+DOMMatrix* DOMMatrix::rotateAxisAngleSelf(
+    double x, double y, double z, double angle)
+{
+    if (x != 0 || y != 0)
+        m_is2D = false;
+
+    m_matrix.rotate3d(x, y, z, angle);
+
+    return this;
+}
+
 } // namespace blink