[JS Changes] Support NumCopies print preset

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 610 matching lines @@
   delegate->GetWebDialogDelegate()->OnDialogClosed(std::string());
   delegate->OnDialogCloseFromWebUI();
 }
 
 void PrintPreviewUI::OnReloadPrintersList() {
   web_ui()->CallJavascriptFunction("reloadPrintersList");
 }
 
 void PrintPreviewUI::OnSetOptionsFromDocument(
     const PrintHostMsg_SetOptionsFromDocument_Params& params) {
-  // Notify WebUI that print scaling is disabled
-  if (params.is_scaling_disabled)
-    web_ui()->CallJavascriptFunction("printScalingDisabledForSourcePDF");
+  base::DictionaryValue options;
+  options.SetBoolean(
+      printing::kSettingFitToPageEnabled,

[Aleksey Shlyapnikov, 2014/11/20 18:56:56]

Why are you using kSettingFitToPageEnabled name here? It makes no sense.

[Nikhil, 2014/11/21 10:45:32]

Thanks for reviewing this! I've introduced kSettingDisableScaling for this. PTAL
:)

+      params.is_scaling_disabled);
+  options.SetInteger(printing::kSettingCopies, params.copies);
+  web_ui()->CallJavascriptFunction("printPresetOptionsFromDocument", options);

[Aleksey Shlyapnikov, 2014/11/20 18:56:56]

Since you're not calling printScalingDisabledForSourcePDF anymore, please remove
the entire call stack from JS.

[Nikhil, 2014/11/21 10:45:32]

Done.

 }
 
 // static
 void PrintPreviewUI::SetDelegateForTesting(TestingDelegate* delegate) {
   g_testing_delegate = delegate;
 }
 
 void PrintPreviewUI::SetSelectedFileForTesting(const base::FilePath& path) {
   handler_->FileSelected(path, 0, NULL);
 }
 
 void PrintPreviewUI::SetPdfSavedClosureForTesting(
     const base::Closure& closure) {
   handler_->SetPdfSavedClosureForTesting(closure);
 }