PrintPreview: Print Preview is not staying associated with initiator renderer.

chrome/browser/ui/webui/print_preview_data_source.h

+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_DATA_SOURCE_H_
+#define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_DATA_SOURCE_H_
+#pragma once
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "chrome/browser/ui/webui/chrome_url_data_manager.h"
+
+// PrintPreviewDataSource serves data for chrome://print requests.
+//
+// The format for requesting data is as follows:
+// chrome://print/<PrintPreviewUIAddrStr>/print.pdf
+//
+// Parameters (< > required):
+//    <PrintPreviewUIAddrStr> = Print preview UI identifier.
+//
+// Example:
+//    chrome://print/0xab0123ef/print.pdf
+
+class PrintPreviewDataSource : public ChromeURLDataManager::DataSource {
+ public:
+  PrintPreviewDataSource();
+
+  // ChromeURLDataManager::DataSource implementation.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_incognito,
+                                int request_id) OVERRIDE;
+  virtual std::string GetMimeType(const std::string& path) const OVERRIDE;
+
+ private:
+  virtual ~PrintPreviewDataSource();
+
+  DISALLOW_COPY_AND_ASSIGN(PrintPreviewDataSource);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_DATA_SOURCE_H_