Fix print preview workflow to reflect settings of selected printer.

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 9a5d2f44eeb4164068243395a05df74402869c51..fb02d3a50116edea94eaa64e2a31bc95331846a1 100644
--- a/chrome/renderer/mock_printer.cc
+++ b/chrome/renderer/mock_printer.cc
@@ -120,11 +120,8 @@ void MockPrinter::ScriptedPrint(int cookie,
   printer_status_ = PRINTER_PRINTING;
 }
 
-void MockPrinter::UpdateSettings(int cookie,
-                                 PrintMsg_PrintPages_Params* params,
+void MockPrinter::UpdateSettings(PrintMsg_PrintPages_Params* params,
                                  const std::vector<int>& pages) {
-  EXPECT_EQ(document_cookie_, cookie);
-
   params->Reset();
   params->pages = pages;
   SetPrintParams(&(params->params));