Refactor the URLResponseInfo to use new design

webkit/plugins/ppapi/url_response_info_util.cc

+// Copyright (c) 2012 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 "webkit/plugins/ppapi/url_response_info_util.h"
+
+#include "base/logging.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebHTTPHeaderVisitor.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURL.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURLResponse.h"
+#include "webkit/plugins/ppapi/ppb_file_ref_impl.h"
+#include "webkit/glue/webkit_glue.h"
+
+using WebKit::WebHTTPHeaderVisitor;
+using WebKit::WebString;
+using WebKit::WebURLResponse;
+
+namespace webkit {
+namespace ppapi {
+
+namespace {
+
+class HeaderFlattener : public WebHTTPHeaderVisitor {
+ public:
+  const std::string& buffer() const { return buffer_; }
+
+  virtual void visitHeader(const WebString& name, const WebString& value) {
+    if (!buffer_.empty())
+      buffer_.append("\n");
+    buffer_.append(name.utf8());
+    buffer_.append(": ");
+    buffer_.append(value.utf8());
+  }
+
+ private:
+  std::string buffer_;
+};
+
+bool IsRedirect(int32_t status) {
+  return status >= 300 && status <= 399;
+}
+
+}  // namespace
+
+::ppapi::URLResponseInfoData DataFromWebURLResponse(
+    PP_Instance pp_instance,
+    const WebURLResponse& response) {
+  ::ppapi::URLResponseInfoData data;
+
+  data.url = response.url().spec();
+  data.status_code = response.httpStatusCode();
+  data.status_text = response.httpStatusText().utf8();
+  if (IsRedirect(data.status_code)) {
+    data.redirect_url = response.httpHeaderField(
+        WebString::fromUTF8("Location")).utf8();
+  }
+
+  HeaderFlattener flattener;
+  response.visitHTTPHeaderFields(&flattener);
+  data.headers = flattener.buffer();
+
+  WebString file_path = response.downloadFilePath();
+  if (!file_path.isEmpty()) {
+    scoped_refptr<PPB_FileRef_Impl> file_ref(
+        PPB_FileRef_Impl::CreateExternal(
+            pp_instance,
+            webkit_glue::WebStringToFilePath(file_path),
+            std::string()));
+    data.body_as_file_ref = file_ref->GetCreateInfo();
+    file_ref->GetReference();  // The returned data has one ref for the plugin.
+  }
+  return data;
+}
+
+}  // namespace ppapi
+}  // namespace webkit