Reuse PrintContext to excessively triggering matchMedia('print') listeners.

webkit/glue/webkit_glue.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 "webkit/glue/webkit_glue.h"
 
 #if defined(OS_WIN)
 #include <objidl.h>
 #include <mlang.h>
 #elif defined(OS_POSIX) && !defined(OS_MACOSX)
@@ skipping 136 matching lines @@
   return web_frame->pageNumberForElementById(WebString::fromUTF8(id),
                                              page_width_in_pixels,
                                              page_height_in_pixels);
 }
 
 int NumberOfPages(WebFrame* web_frame,
                   float page_width_in_pixels,
                   float page_height_in_pixels) {
   WebSize size(static_cast<int>(page_width_in_pixels),
                static_cast<int>(page_height_in_pixels));
-  int number_of_pages = web_frame->printBegin(size);
+  web_frame->printBegin();
+  int number_of_pages = web_frame->setPageSizeResolution(size);
   web_frame->printEnd();
   return number_of_pages;
 }
 
 string16 DumpFrameScrollPosition(WebFrame* web_frame, bool recursive) {
   gfx::Size offset = web_frame->scrollOffset();
   std::string result_utf8;
 
   if (offset.width() > 0 || offset.height() > 0) {
     if (web_frame->parent()) {
@@ skipping 276 matching lines @@
   NOTIMPLEMENTED();
   return NULL;
 #endif
 }
 
 int GetGlyphPageCount() {
   return WebGlyphCache::pageCount();
 }
 
 } // namespace webkit_glue