Move Start/EndPage() from NewPage/PageDone() to inside the metafile.

printing/printed_document.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 PRINTING_PRINTED_DOCUMENT_H_
 #define PRINTING_PRINTED_DOCUMENT_H_
 
 #include <map>
 
 #include "base/ref_counted.h"
@@ skipping 39 matching lines @@
                bool has_visible_overlays);
 
   // Retrieves a page. If the page is not available right now, it
   // requests to have this page be rendered and returns false.
   // Note: locks for a short amount of time.
   bool GetPage(int page_number, scoped_refptr<PrintedPage>* page);
 
   // Draws the page in the context.
   // Note: locks for a short amount of time in debug only.
 #if defined(OS_WIN) || defined(OS_MACOSX)
-  void RenderPrintedPage(const PrintedPage& page,
+  bool RenderPrintedPage(const PrintedPage& page,
                          gfx::NativeDrawingContext context) const;
 #elif defined(OS_POSIX)
-  void RenderPrintedPage(const PrintedPage& page,
+  bool RenderPrintedPage(const PrintedPage& page,
                          PrintingContext* context) const;
 #endif
 
   // Returns true if all the necessary pages for the settings are already
   // rendered.
   // Note: locks while parsing the whole tree.
   bool IsComplete() const;
 
   // Disconnects the PrintedPage source (PrintedPagesSource). It is done when
   // the source is being destroyed.
@@ skipping 138 matching lines @@
 
   // All the immutable members.
   const Immutable immutable_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintedDocument);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTED_DOCUMENT_H_