Add frame count to paint image.

cc/paint/paint_image.cc

 // Copyright 2017 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/paint/paint_image.h"
 #include "base/atomic_sequence_num.h"
 
 namespace cc {
 namespace {
 base::StaticAtomicSequenceNumber s_next_id_;
 }
 
 PaintImage::PaintImage() = default;
 PaintImage::PaintImage(Id id,
                        sk_sp<SkImage> sk_image,
                        AnimationType animation_type,
-                       CompletionState completion_state)
+                       CompletionState completion_state,
+                       size_t frame_count)
     : id_(id),
       sk_image_(std::move(sk_image)),
       animation_type_(animation_type),
-      completion_state_(completion_state) {}
+      completion_state_(completion_state),
+      frame_count_(frame_count) {}
 PaintImage::PaintImage(const PaintImage& other) = default;
 PaintImage::PaintImage(PaintImage&& other) = default;
 PaintImage::~PaintImage() = default;
 
 PaintImage& PaintImage::operator=(const PaintImage& other) = default;
 PaintImage& PaintImage::operator=(PaintImage&& other) = default;
 
 bool PaintImage::operator==(const PaintImage& other) const {
   return id_ == other.id_ && sk_image_ == other.sk_image_ &&
          animation_type_ == other.animation_type_ &&
-         completion_state_ == other.completion_state_;
+         completion_state_ == other.completion_state_ &&
+         frame_count_ == other.frame_count_;
 }
 
 PaintImage::Id PaintImage::GetNextId() {
   return s_next_id_.GetNext();
 }
 
 }  // namespace cc