Oobe: update strings for user creation screen in add person flow

Bug: 1127546
Change-Id: Ifc37a278a860a0443bfa961f565de8a074a32af7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2410071Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Yunke Zhou <yunkez@google.com>
Cr-Commit-Position: refs/heads/master@{#806938}

chrome/app/chromeos_strings.grdp

@@ -762,6 +762,12 @@
   <message name="IDS_OOBE_USER_CREATION_SUBTITLE" desc="Subtitle of the screen which allows users to choose whom the device is set up for.">
     You can always add more people after setup. Each person can personalize their account and keep data private.
   </message>
+  <message name="IDS_OOBE_USER_CREATION_ADD_PERSON_TITLE" desc="Title of the screen which allows users to add person to the device.">
+    Who would you like to add to this <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph>?
+  </message>
+  <message name="IDS_OOBE_USER_CREATION_ADD_PERSON_SUBTITLE" desc="Subtitle of the screen which allows users to add person to the device.">
+    Each person can personalize their account and keep data private.
+  </message>
   <message name="IDS_OOBE_USER_CREATION_SELF_BUTTON_LABEL" desc="The label of the button that leads to set up device for self.">
     You
   </message>

chrome/app/chromeos_strings_grdp/IDS_OOBE_USER_CREATION_ADD_PERSON_SUBTITLE.png.sha1

+01474330418644fe0dabab943e275ae7293040f1
\ No newline at end of file

chrome/app/chromeos_strings_grdp/IDS_OOBE_USER_CREATION_ADD_PERSON_TITLE.png.sha1

+01474330418644fe0dabab943e275ae7293040f1
\ No newline at end of file

chrome/browser/resources/chromeos/login/user_creation.html

@@ -55,7 +55,7 @@ found in the LICENSE file. -->
       }
     </style>
     <oobe-dialog id="userCreationDialog" role="dialog" has-buttons
-        title-key="userCreationTitle" subtitle-key="userCreationSubtitle"
+        title-key="[[titleKey_]]" subtitle-key="[[subtitleKey_]]"
         aria-label$="[[i18nDynamic(locale, 'userCreationTitle')]]"
         for-step="create">
       <hd-iron-icon icon1x="oobe-32:googleg" icon2x="oobe-64:googleg"

chrome/browser/resources/chromeos/login/user_creation.js

@@ -62,12 +62,23 @@ Polymer({
     },
 
     /**
-     * Is the back button visible on the first step of the screen
+     * Is the back button visible on the first step of the screen. Back button
+     * is visible iff we are in the add person flow.
      */
     isBackButtonVisible_: {
       type: Boolean,
       value: true,
-    }
+    },
+
+    titleKey_: {
+      type: String,
+      value: '',
+    },
+
+    subtitleKey_: {
+      type: String,
+      value: '',
+    },
 
   },
 
@@ -82,6 +93,11 @@ Polymer({
   onBeforeShow() {
     this.selectedUserType = UserType.SELF;
     this.selectedSignInMethod = '';
+    this.titleKey_ = this.isBackButtonVisible_ ? 'userCreationAddPersonTitle' :
+                                                 'userCreationTitle';
+    this.subtitleKey_ = this.isBackButtonVisible_ ?
+        'userCreationAddPersonSubtitle' :
+        'userCreationSubtitle';
     if (this.uiStep === UIState.CHILD) {
       chrome.send('updateOobeUIState', [OOBE_UI_STATE.GAIA_SIGNIN]);
     }

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

@@ -33,6 +33,11 @@ void UserCreationScreenHandler::DeclareLocalizedValues(
   builder->AddF("userCreationTitle", IDS_OOBE_USER_CREATION_TITLE,
                 ui::GetChromeOSDeviceName());
   builder->Add("userCreationSubtitle", IDS_OOBE_USER_CREATION_SUBTITLE);
+  builder->AddF("userCreationAddPersonTitle",
+                IDS_OOBE_USER_CREATION_ADD_PERSON_TITLE,
+                ui::GetChromeOSDeviceName());
+  builder->Add("userCreationAddPersonSubtitle",
+               IDS_OOBE_USER_CREATION_ADD_PERSON_SUBTITLE);
   builder->Add("createForSelfLabel", IDS_OOBE_USER_CREATION_SELF_BUTTON_LABEL);
   builder->Add("createForSelfDescription",
                IDS_OOBE_USER_CREATION_SELF_BUTTON_DESCRIPTION);