Introduce content::PageState

content/public/common/page_state.cc

Index: content/public/common/page_state.cc
diff --git a/content/public/common/page_state.cc b/content/public/common/page_state.cc
new file mode 100644
index 0000000000000000000000000000000000000000..27204cdb8fc5d5708faa274867b7766f1ee9d0c9
--- /dev/null
+++ b/content/public/common/page_state.cc
@@ -0,0 +1,85 @@
+// 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(
+    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) {
+  DCHECK(IsValid());
+}
+
+}  // namespace content