[CUPS] Add a "Manage..." button in the local destinations section of Print Preview Dialog on Chrome…

chrome/browser/ui/webui/print_preview/print_preview_ui.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_ui.cc
diff --git a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
index 33422abbf9765fdaeaa31eed7545a273b8b7e51d..8a797b72abc32838a7217e752e0c0ecb9abd6af5 100644
--- a/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
+++ b/chrome/browser/ui/webui/print_preview/print_preview_ui.cc
@@ -42,6 +42,13 @@
 #include "ui/web_dialogs/web_dialog_delegate.h"
 #include "ui/web_dialogs/web_dialog_ui.h"
 
+#if defined(OS_CHROMEOS)
+#include "base/command_line.h"
+#include "base/feature_list.h"
+#include "chrome/common/chrome_features.h"
+#include "chrome/common/chrome_switches.h"
+#endif
+
 using content::WebContents;
 using printing::PageSizeMargins;
 
@@ -393,6 +400,15 @@ content::WebUIDataSource* CreatePrintPreviewUISource() {
   source->OverrideContentSecurityPolicyObjectSrc("object-src 'self';");
   source->AddLocalizedString("moreOptionsLabel", IDS_MORE_OPTIONS_LABEL);
   source->AddLocalizedString("lessOptionsLabel", IDS_LESS_OPTIONS_LABEL);
+#if defined(OS_CHROMEOS)
+  source->AddBoolean("showLocalManageButton",
+                     base::CommandLine::ForCurrentProcess()->HasSwitch(
+                         ::switches::kEnableNativeCups) &&
+                     base::FeatureList::IsEnabled(
+                         features::kMaterialDesignSettings));
+  source->AddString("localPrintersManagementURL",
+                    chrome::kChromeUIMdCupsSettingsURL);
+#endif
   return source;
 }