Update from https://crrev.com/309717

cc/animation/transform_operations.cc

 // Copyright 2013 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 "cc/animation/transform_operations.h"
 
 #include <algorithm>
 
 #include "ui/gfx/animation/tween.h"
 #include "ui/gfx/geometry/box_f.h"
@@ skipping 76 matching lines @@
   for (size_t i = 0; i < operations_.size(); ++i) {
     if (operations_[i].type == TransformOperation::TransformOperationScale)
       return true;
     if (operations_[i].type == TransformOperation::TransformOperationMatrix &&
         !operations_[i].matrix.IsIdentityOrTranslation())
       return true;
   }
   return false;
 }
 
+bool TransformOperations::PreservesAxisAlignment() const {
+  for (size_t i = 0; i < operations_.size(); ++i) {
+    switch (operations_[i].type) {
+      case TransformOperation::TransformOperationIdentity:
+      case TransformOperation::TransformOperationTranslate:
+      case TransformOperation::TransformOperationScale:
+        continue;
+      case TransformOperation::TransformOperationMatrix:
+        if (!operations_[i].matrix.IsIdentity() &&
+            !operations_[i].matrix.IsScaleOrTranslation())
+          return false;
+        continue;
+      case TransformOperation::TransformOperationRotate:
+      case TransformOperation::TransformOperationSkew:
+      case TransformOperation::TransformOperationPerspective:
+        return false;
+    }
+  }
+  return true;
+}
+
 bool TransformOperations::IsTranslation() const {
   for (size_t i = 0; i < operations_.size(); ++i) {
     switch (operations_[i].type) {
       case TransformOperation::TransformOperationIdentity:
       case TransformOperation::TransformOperationTranslate:
         continue;
       case TransformOperation::TransformOperationMatrix:
         if (!operations_[i].matrix.IsIdentityOrTranslation())
           return false;
         continue;
@@ skipping 182 matching lines @@
       decomposed_transform_.reset(new gfx::DecomposedTransform());
     gfx::Transform transform = Apply();
     if (!gfx::DecomposeTransform(decomposed_transform_.get(), transform))
       return false;
     decomposed_transform_dirty_ = false;
   }
   return true;
 }
 
 }  // namespace cc