Reland 105087: PrintPreview: Fix printer color settings issues based on printer ppd/schema info.

printing/print_settings.h

Index: printing/print_settings.h
diff --git a/printing/print_settings.h b/printing/print_settings.h
index 4e402318eeae81238a7c064da55ab467290c310d..d73fd661041a3665825af62f9a7b2e8a361e717b 100644
--- a/printing/print_settings.h
+++ b/printing/print_settings.h
@@ -11,10 +11,21 @@
 #include "base/string16.h"
 #include "printing/page_range.h"
 #include "printing/page_setup.h"
+#include "printing/printing_export.h"
 #include "ui/gfx/rect.h"
 
 namespace printing {
 
+// Returns true if color model is selected.
+PRINTING_EXPORT bool isColorModelSelected(int model);
+
+#if defined (USE_CUPS)
+  // Get the color model setting name and value for the |color_mode|.
+  PRINTING_EXPORT  void GetColorModelForMode(int color_mode,
+                                             std::string* color_setting_name,
+                                             std::string* color_value);
+#endif
+
 // OS-independent print settings.
 class PRINTING_EXPORT PrintSettings {
  public: