GeometryInterace: Add rotate methods.

third_party/WebKit/Source/core/dom/DOMMatrix.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/dom/DOMMatrix.h"
 
 namespace blink {
 
 DOMMatrix* DOMMatrix::create()
 {
@@ skipping 88 matching lines @@
         m_matrix->scaleNonUniform(sx, sy);
     else
         m_matrix->scale3d(sx, sy, sz);
 
     if (hasTranslation)
         translateSelf(-ox, -oy, -oz);
 
     return this;
 }
 
+DOMMatrix* DOMMatrix::rotateSelf(double rotX)
+{
+    return rotateSelf(0, 0, rotX);
+}
+
+DOMMatrix* DOMMatrix::rotateSelf(double rotX, double rotY)
+{
+    return rotateSelf(rotX, rotY, 0);
+}
+
+DOMMatrix* DOMMatrix::rotateSelf(double rotX, double rotY, double rotZ)
+{
+    if (rotZ)
+        m_matrix->rotate3d(0, 0, 1, rotZ);
+
+    if (rotY) {
+        m_matrix->rotate3d(0, 1, 0, rotY);
+        m_is2D = false;
+    }
+
+    if (rotX) {
+        m_matrix->rotate3d(1, 0, 0, rotX);
+        m_is2D = false;
+    }
+
+    return this;
+}
+
+DOMMatrix* DOMMatrix::rotateFromVectorSelf(double x, double y)
+{
+    m_matrix->rotate(rad2deg(atan2(y, x)));
+    return this;
+}
+
+DOMMatrix* DOMMatrix::rotateAxisAngleSelf(double x, double y, double z, double angle)
+{
+    if (x || y)
+        m_is2D = false;
+
+    m_matrix->rotate3d(x, y, z, angle);
+    return this;
+}
+
 } // namespace blink