Introduce content::PageState

content/public/common/page_state.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/logging.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebHTTPBody.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebHistoryItem.h"
+#include "webkit/base/file_path_string_conversions.h"
+#include "webkit/glue/glue_serialize_deprecated.h"
+
+namespace content {
+
+// static
+PageState PageState::CreateFromEncodedData(const std::string& data) {
+  return PageState(data);
+}
+
+// static
+PageState PageState::CreateFromURL(const GURL& url) {
+  return PageState(webkit_glue::CreateHistoryStateForURL(url));
+}
+
+// static
+PageState PageState::CreateForTesting(

[Tom Sepez, 2013/05/24 17:46:49]

Can this move to the _unittest file? Maybe as a testing subclass of PageState?

+    const GURL& url,
+    bool body_contains_password_data,
+    const char* optional_body_data,
+    const base::FilePath* optional_body_file_path) {
+  WebKit::WebHistoryItem history_item;
+  history_item.initialize();
+  history_item.setURLString(
+      WebKit::WebString::fromUTF8(url.possibly_invalid_spec()));
+  if (optional_body_data || optional_body_file_path) {
+    WebKit::WebHTTPBody http_body;
+    http_body.initialize();
+    http_body.setContainsPasswordData(body_contains_password_data);
+    if (optional_body_data) {
+      http_body.appendData(
+          WebKit::WebData(optional_body_data, strlen(optional_body_data)));
+    }
+    if (optional_body_file_path) {
+      http_body.appendFile(
+          webkit_base::FilePathToWebString(*optional_body_file_path));
+    }
+    history_item.setHTTPBody(http_body);
+  }
+  return PageState(webkit_glue::HistoryItemToString(history_item));
+}
+
+PageState::PageState() {
+}
+
+bool PageState::IsValid() const {
+  return !data_.empty();
+}
+
+bool PageState::Equals(const PageState& other) const {
+  return data_ == other.data_;
+}
+
+const std::string& PageState::ToEncodedData() const {
+  return data_;
+}
+
+std::vector<base::FilePath> PageState::GetReferencedFiles() const {
+  return webkit_glue::FilePathsFromHistoryState(data_);
+}
+
+PageState PageState::RemovePasswordData() const {
+  return PageState(webkit_glue::RemovePasswordDataFromHistoryState(data_));
+}
+
+PageState PageState::RemoveScrollOffset() const {
+  return PageState(webkit_glue::RemoveScrollOffsetFromHistoryState(data_));
+}
+
+PageState::PageState(const std::string& data)
+    : data_(data) {
+  // TODO(darin): Enable this DCHECK once tests have been fixed up to not pass
+  // bogus encoded data to CreateFromEncodedData.
+  //DCHECK(IsValid());
+}
+
+}  // namespace content