Implement position: sticky updates on compositor

ui/gfx/transform.cc

 // Copyright (c) 2012 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.
 
 // MSVC++ requires this to be set before any other includes to get M_PI.
 #define _USE_MATH_DEFINES
 
 #include "ui/gfx/transform.h"
 
 #include <cmath>
@@ skipping 157 matching lines @@
     matrix_.preConcat(rot);
   }
 }
 
 void Transform::Scale(SkMScalar x, SkMScalar y) { matrix_.preScale(x, y, 1); }
 
 void Transform::Scale3d(SkMScalar x, SkMScalar y, SkMScalar z) {
   matrix_.preScale(x, y, z);
 }
 
+void Transform::Translate(const Vector2dF& offset) {
+  Translate(offset.x(), offset.y());
+}
+
 void Transform::Translate(SkMScalar x, SkMScalar y) {
   matrix_.preTranslate(x, y, 0);
 }
 
+void Transform::Translate3d(const Vector3dF& offset) {
+  Translate3d(offset.x(), offset.y(), offset.z());
+}
+
 void Transform::Translate3d(SkMScalar x, SkMScalar y, SkMScalar z) {
   matrix_.preTranslate(x, y, z);
 }
 
 void Transform::Skew(double angle_x, double angle_y) {
   if (matrix_.isIdentity()) {
     matrix_.set(0, 1, TanDegrees(angle_x));
     matrix_.set(1, 0, TanDegrees(angle_y));
   } else {
     SkMatrix44 skew(SkMatrix44::kIdentity_Constructor);
@@ skipping 401 matching lines @@
       matrix_.get(2, 1),
       matrix_.get(2, 2),
       matrix_.get(2, 3),
       matrix_.get(3, 0),
       matrix_.get(3, 1),
       matrix_.get(3, 2),
       matrix_.get(3, 3));
 }
 
 }  // namespace gfx