Add support for printing selection only flag. This only adds the flag to the ...

chrome/renderer/mock_printer.h

Index: chrome/renderer/mock_printer.h
===================================================================
--- chrome/renderer/mock_printer.h	(revision 17852)
+++ chrome/renderer/mock_printer.h	(working copy)
@@ -100,6 +100,7 @@
   void GetDefaultPrintSettings(ViewMsg_Print_Params* params);
   void ScriptedPrint(int cookie,
                      int expected_pages_count,
+                     bool has_selection,
                      ViewMsg_PrintPages_Params* settings);
   void SetPrintedPagesCount(int cookie, int number_pages);
   void PrintPage(const ViewHostMsg_DidPrintPage_Params& params);
@@ -133,6 +134,9 @@
   // Desired apparent dpi on paper.
   int desired_dpi_;
 
+  // Print selection.
+  bool selection_only_;
+
   // Cookie for the document to ensure correctness.
   int document_cookie_;
   int current_document_cookie_;