Re-implement PageState serialization without a Blink API dependency.

content/public/common/page_state_ios.cc

-// Copyright (c) 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 "content/public/common/page_state.h"
-
-#include "base/files/file_path.h"
-#include "base/logging.h"
-
-namespace content {
-
-// static
-PageState PageState::CreateFromURL(const GURL& url) {
-  NOTIMPLEMENTED();
-  return PageState();
-}
-
-// static
-PageState PageState::CreateForTesting(
-    const GURL& url,
-    bool body_contains_password_data,
-    const char* optional_body_data,
-    const base::FilePath* optional_body_file_path) {
-  NOTIMPLEMENTED();
-  return PageState();
-}
-
-std::vector<base::FilePath> PageState::GetReferencedFiles() const {
-  NOTIMPLEMENTED();
-  return std::vector<base::FilePath>();
-}
-
-PageState PageState::RemovePasswordData() const {
-  NOTIMPLEMENTED();
-  return *this;
-}
-
-PageState PageState::RemoveScrollOffset() const {
-  NOTIMPLEMENTED();
-  return *this;
-}
-
-}  // namespace content