cc: Delete unused AnimationCurve::AffectsScale and related code

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 <stddef.h>
 
 #include <algorithm>
 
@@ skipping 66 matching lines @@
                                                  min_progress, max_progress,
                                                  &bounds_for_operation)) {
       return false;
     }
     *bounds = bounds_for_operation;
   }
 
   return true;
 }
 
-bool TransformOperations::AffectsScale() const {
-  for (size_t i = 0; i < operations_.size(); ++i) {
-    if (operations_[i].type == TransformOperation::TRANSFORM_OPERATION_SCALE)
-      return true;
-    if (operations_[i].type == TransformOperation::TRANSFORM_OPERATION_MATRIX &&
-        !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::TRANSFORM_OPERATION_IDENTITY:
       case TransformOperation::TRANSFORM_OPERATION_TRANSLATE:
       case TransformOperation::TRANSFORM_OPERATION_SCALE:
         continue;
       case TransformOperation::TRANSFORM_OPERATION_MATRIX:
         if (!operations_[i].matrix.IsIdentity() &&
             !operations_[i].matrix.IsScaleOrTranslation())
@@ skipping 200 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