PrintPreview: Added code to identify the printer default duplex value.

chrome/browser/ui/webui/print_preview_handler.cc

Index: chrome/browser/ui/webui/print_preview_handler.cc
diff --git a/chrome/browser/ui/webui/print_preview_handler.cc b/chrome/browser/ui/webui/print_preview_handler.cc
index 53faf1ac950bb3e6c023c2973e89fd3cb4b5a47b..719e08428b890df0d27be042857cec70c5d9420b 100644
--- a/chrome/browser/ui/webui/print_preview_handler.cc
+++ b/chrome/browser/ui/webui/print_preview_handler.cc
@@ -57,7 +57,7 @@ namespace {
 
 const char kDisableColorOption[] = "disableColorOption";
 const char kSetColorAsDefault[] = "setColorAsDefault";
-const char kSetDuplexAsDefault[] = "setDuplexAsDefault";
+const char kPrinterDefaultDuplexValue[] = "printerDefaultDuplexValue";
 
 #if defined(USE_CUPS)
 const char kColorDevice[] = "ColorDevice";
@@ -273,7 +273,7 @@ class PrintSystemTaskProxy
     VLOG(1) << "Get printer capabilities start for " << printer_name;
     printing::PrinterCapsAndDefaults printer_info;
     bool supports_color = true;
-    bool set_duplex_as_default = false;
+    int  default_duplex_setting_value = printing::UNKNOWN;
     if (!print_backend_->GetPrinterCapsAndDefaults(printer_name,
                                                    &printer_info)) {
       return;
@@ -306,9 +306,12 @@ class PrintSystemTaskProxy
           ch = ppdFindChoice(option, option->defchoice);
       }
 
-      if (ch != NULL && strcmp(ch->choice, kDuplexNone) != 0)
-        set_duplex_as_default = true;
-
+      if (ch != NULL) {
+        if (strcmp(ch->choice, kDuplexNone) != 0)
+          default_duplex_setting_value = printing::TWO_SIDED;
+        else
+          default_duplex_setting_value = printing::ONE_SIDED;
+      }
       ppdClose(ppd);
     }
     file_util::Delete(ppd_file_path, false);
@@ -319,11 +322,16 @@ class PrintSystemTaskProxy
     // http://msdn.microsoft.com/en-us/windows/hardware/gg463431.
     supports_color = (printer_info.printer_capabilities.find(kPskColor) !=
                       std::string::npos);
-    set_duplex_as_default =
-        (printer_info.printer_defaults.find(kPskDuplexFeature) !=
-            std::string::npos) &&
-        (printer_info.printer_defaults.find(kPskTwoSided) !=
-            std::string::npos);
+
+    if (printer_info.printer_defaults.find(kPskDuplexFeature) !=
+            std::string::npos) {
+        if (printer_info.printer_defaults.find(kPskTwoSided) !=
+                std::string::npos) {
+          default_duplex_setting_value = printing::TWO_SIDED;
+        } else {
+          default_duplex_setting_value = printing::ONE_SIDED;
+        }
+    }
 #else
   NOTIMPLEMENTED();
 #endif
@@ -336,7 +344,8 @@ class PrintSystemTaskProxy
        settings_info.SetBoolean(kSetColorAsDefault,
                                 PrintPreviewHandler::last_used_color_setting_);
     }
-    settings_info.SetBoolean(kSetDuplexAsDefault, set_duplex_as_default);
+    settings_info.SetInteger(kPrinterDefaultDuplexValue,
+                             default_duplex_setting_value);
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         NewRunnableMethod(this,