a11y: Add accessible names to image buttons on ParentAccessView

Bug: 938655
Test: manually
Change-Id: I77a713e84a9fbd8b73470234e39f9a416c1cad4d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1504952Reviewed-by: Jacob Dufault <jdufault@chromium.org>
Commit-Queue: Aga Wronska <agawronska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638230}

ash/ash_strings.grd

@@ -1478,9 +1478,12 @@ This file contains the strings for ash.
       <message name="IDS_ASH_LOGIN_POD_PASSWORD_FIELD_ACCESSIBLE_NAME" desc="Text to be spoken when the focus is set to the password field of a user pod on the sign-in screen.">
         Password for <ph name="USER_EMAIL_ADDRESS">$1<ex>john.doe@example.com</ex></ph>
       </message>
-      <message name="IDS_ASH_LOGIN_POD_SUBMIT_BUTTON_ACCESSIBLE_NAME" desc="Text to be spoken when the focus is set to the submit button of a user pod on the sign-in screen.">
+      <message name="IDS_ASH_LOGIN_SUBMIT_BUTTON_ACCESSIBLE_NAME" desc="Text to be spoken when the focus is set to the submit button on login screen.">
         Submit
       </message>
+      <message name="IDS_ASH_LOGIN_BACK_BUTTON_ACCESSIBLE_NAME" desc="Text to be spoken when the focus is set to the back button on login screen.">
+        Back
+      </message>
       <message name="IDS_ASH_PIN_KEYBOARD_DELETE_ACCESSIBLE_NAME" desc="Text to be spoken when the focus is set to the delete button of the PIN keyboard.">
         Delete
       </message>

ash/ash_strings_grd/IDS_ASH_LOGIN_BACK_BUTTON_ACCESSIBLE_NAME.png.sha1

+fde0a162eeeabdfc24cd099bc8344009d5c84899
\ No newline at end of file

ash/ash_strings_grd/IDS_ASH_LOGIN_SUBMIT_BUTTON_ACCESSIBLE_NAME.png.sha1

+14918f91cb08b4b56bad8a64e307d0f4d0f4012e
\ No newline at end of file

ash/login/ui/login_password_view.cc

@@ -404,8 +404,8 @@ LoginPasswordView::LoginPasswordView() {
           kLockScreenArrowIcon, kSubmitButtonSizeDp,
           SkColorSetA(login_constants::kButtonEnabledColor,
                       login_constants::kButtonDisabledAlpha)));
-  submit_button_->SetAccessibleName(l10n_util::GetStringUTF16(
-      IDS_ASH_LOGIN_POD_SUBMIT_BUTTON_ACCESSIBLE_NAME));
+  submit_button_->SetAccessibleName(
+      l10n_util::GetStringUTF16(IDS_ASH_LOGIN_SUBMIT_BUTTON_ACCESSIBLE_NAME));
   password_row_->AddChildView(submit_button_);
 
   // Separator on bottom.

ash/login/ui/parent_access_view.cc

@@ -356,6 +356,8 @@ ParentAccessView::ParentAccessView(const AccountId& account_id,
                                                kArrowSizeDp, SK_ColorWHITE));
   back_button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
                                   views::ImageButton::ALIGN_MIDDLE);
+  back_button_->SetAccessibleName(
+      l10n_util::GetStringUTF16(IDS_ASH_LOGIN_BACK_BUTTON_ACCESSIBLE_NAME));
   header->AddChildView(back_button_);
 
   // Main view icon.
@@ -461,6 +463,8 @@ ParentAccessView::ParentAccessView(const AccountId& account_id,
   submit_button_->SetPreferredSize(
       gfx::Size(kArrowButtonSizeDp, kArrowButtonSizeDp));
   submit_button_->SetEnabled(false);
+  submit_button_->SetAccessibleName(
+      l10n_util::GetStringUTF16(IDS_ASH_LOGIN_SUBMIT_BUTTON_ACCESSIBLE_NAME));
   footer->AddChildView(submit_button_);
 
   add_spacer(kSubmitButtonBottomMarginDp);