Add incremental updates for multipage distillation.

components/dom_distiller/core/article_distillation_update.cc

+// Copyright 2014 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 "components/dom_distiller/core/article_distillation_update.h"
+
+#include "base/logging.h"
+
+namespace dom_distiller {
+
+ArticleDistillationUpdate::ArticleDistillationUpdate(
+    const std::vector<RefCountedDistilledPageProto>& pages,
+    bool has_next_page,
+    bool has_prev_page) {
+  pages_ = pages;

[cjhopman, 2014/02/28 02:38:14]

These should be initialized in the initializer list

 ADU::ADU(...) : pages_(pages), ... {}

[shashi, 2014/03/02 02:53:40]

Done.

+  has_next_page_ = has_next_page;
+  has_prev_page_ = has_prev_page;
+}
+
+ArticleDistillationUpdate::~ArticleDistillationUpdate() {}
+
+const ArticleDistillationUpdate::RefCountedDistilledPageProto
+ArticleDistillationUpdate::getDistilledPage(size_t index) const {
+  DCHECK_GT(pages_.size(), index);
+  return pages_[index];
+}
+
+size_t ArticleDistillationUpdate::getPagesSize() const { return pages_.size(); }

[cjhopman, 2014/02/28 02:38:14]

These three could be inlined in the header.

[shashi, 2014/03/02 02:53:40]

Done.

+
+bool ArticleDistillationUpdate::hasNextPage() const { return has_next_page_; }
+
+bool ArticleDistillationUpdate::hasPrevPage() const { return has_prev_page_; }
+
+}  // namespace dom_distiller