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

chrome/renderer/mock_printer.cc

Index: chrome/renderer/mock_printer.cc
diff --git a/chrome/renderer/mock_printer.cc b/chrome/renderer/mock_printer.cc
index 6fa65ccf408f0a309e962ad92e10abb3d35b6612..20bb28cf8c237bf378fbd556bc4200cc00909ef4 100644
--- a/chrome/renderer/mock_printer.cc
+++ b/chrome/renderer/mock_printer.cc
@@ -94,10 +94,12 @@ void MockPrinter::ScriptedPrint(int cookie,
 }
 
 void MockPrinter::UpdateSettings(int cookie,
-                                 PrintMsg_PrintPages_Params* params) {
+                                 PrintMsg_PrintPages_Params* params,
+                                 const std::vector<int>& pages) {
   EXPECT_EQ(document_cookie_, cookie);
 
   memset(params, 0, sizeof(PrintMsg_PrintPages_Params));
+  params->pages = pages;
   SetPrintParams(&(params->params));
   printer_status_ = PRINTER_PRINTING;
 }