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

chrome/renderer/mock_render_thread.h

Index: chrome/renderer/mock_render_thread.h
diff --git a/chrome/renderer/mock_render_thread.h b/chrome/renderer/mock_render_thread.h
index 5eb7ad391bbbe177159a79a6259d28f42fb3e174..eac4e416b4e1030ff60d8b95eb33db5c7ac4ab36 100644
--- a/chrome/renderer/mock_render_thread.h
+++ b/chrome/renderer/mock_render_thread.h
@@ -126,7 +126,7 @@ class MockRenderThread : public RenderThreadBase {
   void OnDidGetPrintedPagesCount(int cookie, int number_pages);
   void OnDidPrintPage(const PrintHostMsg_DidPrintPage_Params& params);
   void OnDidGetPreviewPageCount(int document_cookie, int number_pages,
-                                bool is_modifiable);
+                                bool is_modifiable, bool clear_preview_data);
   void OnDidPreviewPage(const PrintHostMsg_DidPreviewPage_Params& params);
 
   // For print preview, PrintWebViewHelper will update settings.