Print Preview: Add a title for the clear search button

Fixed: 1060620
Change-Id: I5a2ba1bf079154436cab53fa3c3765b6948001ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2317779Reviewed-by: dpapad <dpapad@chromium.org>
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791339}

chrome/browser/resources/print_preview/ui/print_preview_search_box.html

@@ -53,6 +53,6 @@
   <div slot="inline-prefix" id="icon" class="cr-icon icon-search" alt=""></div>
   <cr-icon-button id="clearSearch" class="icon-cancel"
       hidden$="[[!hasSearchText]]" slot="suffix" on-click="onClearClick_"
-      title="[[clearLabel]]">
+      title="$i18n{clearSearch}">
   </cr-icon-button>
 </cr-input>

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

@@ -220,6 +220,8 @@ void AddPrintPreviewStrings(content::WebUIDataSource* source) {
      IDS_PRINT_PREVIEW_ADVANCED_SETTINGS_SEARCH_BOX_PLACEHOLDER},
     {"bottom", IDS_PRINT_PREVIEW_BOTTOM_MARGIN_LABEL},
     {"cancel", IDS_CANCEL},
+    // TODO(dpapad): Use a single merged string resource for "Clear search".
+    {"clearSearch", IDS_DOWNLOAD_CLEAR_SEARCH},
     {"cloudPrintPromotion", IDS_PRINT_PREVIEW_CLOUD_PRINT_PROMOTION},
     {"copiesInstruction", IDS_PRINT_PREVIEW_COPIES_INSTRUCTION},
     {"copiesLabel", IDS_PRINT_PREVIEW_COPIES_LABEL},