Add a very basic PIN UI implementation that is shared between lock and settings.

chrome/browser/ui/webui/chromeos/login/oobe_ui.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 83 matching lines @@
 
 const char kStringsJSPath[] = "strings.js";
 const char kLockJSPath[] = "lock.js";
 const char kLoginJSPath[] = "login.js";
 const char kOobeJSPath[] = "oobe.js";
 const char kKeyboardUtilsJSPath[] = "keyboard_utils.js";
 const char kCustomElementsHTMLPath[] = "custom_elements.html";
 const char kCustomElementsJSPath[] = "custom_elements.js";
 
 // Paths for deferred resource loading.
+const char kCustomElementsPinHTMLPath[] = "custom_elements/pin.html";
+const char kCustomElementsPinCSSPath[] = "custom_elements/pin.css";
+const char kCustomElementsPinJSPath[] = "custom_elements/pin.js";
 const char kEnrollmentHTMLPath[] = "enrollment.html";
 const char kEnrollmentCSSPath[] = "enrollment.css";
 const char kEnrollmentJSPath[] = "enrollment.js";
 
+// Shared parameter with JS that enables or disables the PIN screen. This needs
+// to stay synchronized with the JS definition.
+const char kShowPinKey[] = "showPin";
+
 // Creates a WebUIDataSource for chrome://oobe
 content::WebUIDataSource* CreateOobeUIDataSource(
     const base::DictionaryValue& localized_strings,
     const std::string& display_type) {
   content::WebUIDataSource* source =
       content::WebUIDataSource::Create(chrome::kChromeUIOobeHost);
   source->AddLocalizedStrings(localized_strings);
   source->SetJsonPath(kStringsJSPath);
 
   if (display_type == OobeUI::kOobeDisplay) {
     source->SetDefaultResource(IDR_OOBE_HTML);
     source->AddResourcePath(kOobeJSPath, IDR_OOBE_JS);
     source->AddResourcePath(kCustomElementsHTMLPath,
                             IDR_CUSTOM_ELEMENTS_OOBE_HTML);
     source->AddResourcePath(kCustomElementsJSPath, IDR_CUSTOM_ELEMENTS_OOBE_JS);
   } else if (display_type == OobeUI::kLockDisplay) {
     source->SetDefaultResource(IDR_LOCK_HTML);
     source->AddResourcePath(kLockJSPath, IDR_LOCK_JS);
     source->AddResourcePath(kCustomElementsHTMLPath,
                             IDR_CUSTOM_ELEMENTS_LOCK_HTML);
     source->AddResourcePath(kCustomElementsJSPath, IDR_CUSTOM_ELEMENTS_LOCK_JS);
+    source->AddResourcePath(kCustomElementsPinCSSPath,
+                            IDR_CUSTOM_ELEMENTS_PIN_CSS);
+    source->AddResourcePath(kCustomElementsPinHTMLPath,
+                            IDR_CUSTOM_ELEMENTS_PIN_HTML);
+    source->AddResourcePath(kCustomElementsPinJSPath,
+                            IDR_CUSTOM_ELEMENTS_PIN_JS);
+
+    // TODO(jdufault): Dynamically show pin when it is enabled.
+    source->AddBoolean(kShowPinKey, false);
   } else {
     source->SetDefaultResource(IDR_LOGIN_HTML);
     source->AddResourcePath(kLoginJSPath, IDR_LOGIN_JS);
     source->AddResourcePath(kCustomElementsHTMLPath,
                             IDR_CUSTOM_ELEMENTS_LOGIN_HTML);
     source->AddResourcePath(kCustomElementsJSPath,
                             IDR_CUSTOM_ELEMENTS_LOGIN_JS);
   }
   source->AddResourcePath(kKeyboardUtilsJSPath, IDR_KEYBOARD_UTILS_JS);
   source->OverrideContentSecurityPolicyFrameSrc(
@@ skipping 436 matching lines @@
   screen_dimmer->set_at_bottom(true);
   screen_dimmer->SetDimming(should_dim);
 
   FOR_EACH_OBSERVER(Observer,
                     observer_list_,
                     OnCurrentScreenChanged(current_screen_, new_screen));
   current_screen_ = new_screen;
 }
 
 }  // namespace chromeos