Print preview page selection should not require a rerendering of draft pages.

chrome/renderer/mock_render_thread.cc

Index: chrome/renderer/mock_render_thread.cc
diff --git a/chrome/renderer/mock_render_thread.cc b/chrome/renderer/mock_render_thread.cc
index aac71561a37d6ce2e0e2e940dcf405481eae0cfe..ff983fa0878f5da51adcf6b76f8d4da50c52d112 100644
--- a/chrome/renderer/mock_render_thread.cc
+++ b/chrome/renderer/mock_render_thread.cc
@@ -213,7 +213,8 @@ void MockRenderThread::OnDidPrintPage(
 
 void MockRenderThread::OnDidGetPreviewPageCount(int document_cookie,
                                                 int number_pages,
-                                                bool is_modifiable) {
+                                                bool is_modifiable,
+                                                bool clear_preview_data) {
   print_preview_pages_remaining_ = number_pages;
 }