Update from https://crrev.com/316786

ui/gfx/transform.h

 // 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.
 
 #ifndef UI_GFX_TRANSFORM_H_
 #define UI_GFX_TRANSFORM_H_
 
 #include <iosfwd>
 #include <string>
 
@@ skipping 220 matching lines @@
   // sets |this| to the reconstituted result. Returns false if either matrix
   // can't be decomposed. Uses routines described in this spec:
   // http://www.w3.org/TR/css3-3d-transforms/.
   //
   // Note: this call is expensive since we need to decompose the transform. If
   // you're going to be calling this rapidly (e.g., in an animation) you should
   // decompose once using gfx::DecomposeTransforms and reuse your
   // DecomposedTransform.
   bool Blend(const Transform& from, double progress);
 
+  void RoundTranslationComponents();
+
   // Returns |this| * |other|.
   Transform operator*(const Transform& other) const {
     return Transform(*this, other);
   }
 
   // Sets |this| = |this| * |other|
   Transform& operator*=(const Transform& other) {
     PreconcatTransform(other);
     return *this;
   }
@@ skipping 17 matching lines @@
 };
 
 // This is declared here for use in gtest-based unit tests but is defined in
 // the gfx_test_support target. Depend on that to use this in your unit test.
 // This should not be used in production code - call ToString() instead.
 void PrintTo(const Transform& transform, ::std::ostream* os);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_TRANSFORM_H_