Printing: Remove unused PageOverlay since header/footers are drawn in PrintWebViewHelper.

printing/printed_document_cairo.cc

 // 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.
 
 #include "printing/printed_document.h"
 
 #include "base/logging.h"
 #include "printing/page_number.h"
 #include "printing/printed_page.h"
 #include "printing/printing_context_cairo.h"
@@ skipping 16 matching lines @@
   {
     base::AutoLock lock(lock_);
     if (page.page_number() - 1 == mutable_.first_page) {
       reinterpret_cast<PrintingContextCairo*>(context)->PrintDocument(
           page.metafile());
     }
   }
 #endif  // !defined(OS_CHROMEOS)
 }
 
-void PrintedDocument::DrawHeaderFooter(gfx::NativeDrawingContext context,
-                                       std::wstring text,
-                                       gfx::Rect bounds) const {
-  NOTIMPLEMENTED();
-}
-
 }  // namespace printing