Add DPI option selection to Print Preview.

chrome/browser/ui/webui/print_preview/print_preview_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/print_preview/print_preview_ui.h"
 
 #include <map>
 #include <vector>
 
 #include "base/id_map.h"
@@ skipping 246 matching lines @@
   source->AddLocalizedString("noMargins", IDS_PRINT_PREVIEW_NO_MARGINS);
   source->AddLocalizedString("customMargins", IDS_PRINT_PREVIEW_CUSTOM_MARGINS);
   source->AddLocalizedString("minimumMargins",
                              IDS_PRINT_PREVIEW_MINIMUM_MARGINS);
   source->AddLocalizedString("top", IDS_PRINT_PREVIEW_TOP_MARGIN_LABEL);
   source->AddLocalizedString("bottom", IDS_PRINT_PREVIEW_BOTTOM_MARGIN_LABEL);
   source->AddLocalizedString("left", IDS_PRINT_PREVIEW_LEFT_MARGIN_LABEL);
   source->AddLocalizedString("right", IDS_PRINT_PREVIEW_RIGHT_MARGIN_LABEL);
   source->AddLocalizedString("mediaSizeLabel",
                              IDS_PRINT_PREVIEW_MEDIA_SIZE_LABEL);
+  source->AddLocalizedString("dpiLabel", IDS_PRINT_PREVIEW_DPI_LABEL);
+  source->AddLocalizedString("dpiItemLabel", IDS_PRINT_PREVIEW_DPI_ITEM_LABEL);
   source->AddLocalizedString("destinationSearchTitle",
                              IDS_PRINT_PREVIEW_DESTINATION_SEARCH_TITLE);
   source->AddLocalizedString("accountSelectTitle",
                              IDS_PRINT_PREVIEW_ACCOUNT_SELECT_TITLE);
   source->AddLocalizedString("addAccountTitle",
                              IDS_PRINT_PREVIEW_ADD_ACCOUNT_TITLE);
   source->AddLocalizedString("cloudPrintPromotion",
                              IDS_PRINT_PREVIEW_CLOUD_PRINT_PROMOTION);
   source->AddLocalizedString("searchBoxPlaceholder",
                              IDS_PRINT_PREVIEW_SEARCH_BOX_PLACEHOLDER);
@@ skipping 358 matching lines @@
 }
 
 void PrintPreviewUI::SetSelectedFileForTesting(const base::FilePath& path) {
   handler_->FileSelected(path, 0, NULL);
 }
 
 void PrintPreviewUI::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   handler_->SetPdfSavedClosureForTesting(closure);
 }