Apply paper size selection for local printers on OSX.

printing/printing_context_mac.h

Index: printing/printing_context_mac.h
diff --git a/printing/printing_context_mac.h b/printing/printing_context_mac.h
index 9257510807ef5f3a8a44e601d0608b64f84ecb6e..f16ef545e7c7d24a7d16b73124fe2c29d2aa9f60 100644
--- a/printing/printing_context_mac.h
+++ b/printing/printing_context_mac.h
@@ -54,13 +54,18 @@ class PRINTING_EXPORT PrintingContextMac : public PrintingContext {
   PageRanges GetPageRangesFromPrintInfo();
 
   // Updates |print_info_| to use the given printer.
-  // Returns true if the printer was set else returns false.
+  // Returns true if the printer was set.
   bool SetPrinter(const std::string& device_name);
 
-  // Updates |print_info_| page format with user default paper information.
-  // Returns true if the paper was set else returns false.
+  // Updates |print_info_| page format with paper selected by user. If paper was
+  // not selected, default system paper is used.
+  // Returns true if the paper was set.
   bool UpdatePageFormatWithPaperInfo();
 
+  // Updates |print_info_| page format with |paper|.
+  // Returns true if the paper was set.
+  bool UpdatePageFormatWithPaper(PMPaper paper, PMPageFormat page_format);
+
   // Sets the print job destination type as preview job.
   // Returns true if the print job destination type is set.
   bool SetPrintPreviewJob();