Print Preview: change getPreview to cr.sendWithPromise

components/printing/renderer/print_web_view_helper.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 "components/printing/renderer/print_web_view_helper.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 1169 matching lines @@
                             PREVIEW_EVENT_REQUESTED, PREVIEW_EVENT_MAX);
 
   if (!print_preview_context_.source_frame()) {
     DidFinishPrinting(FAIL_PREVIEW);
     return;
   }
 
   if (!UpdatePrintSettings(print_preview_context_.source_frame(),
                            print_preview_context_.source_node(), settings)) {
     if (print_preview_context_.last_error() != PREVIEW_ERROR_BAD_SETTING) {
-      Send(new PrintHostMsg_PrintPreviewInvalidPrinterSettings(
-          routing_id(), print_pages_params_
-                            ? print_pages_params_->params.document_cookie
-                            : 0));
-      notify_browser_of_print_failure_ = false;  // Already sent.
+      DidFinishPrinting(INVALID_SETTINGS);
+    } else {
+      DidFinishPrinting(FAIL_PREVIEW);
     }
-    DidFinishPrinting(FAIL_PREVIEW);
     return;
   }
 
   // Set the options from document if we are previewing a pdf and send a
   // message to browser.
   if (print_pages_params_->params.is_first_request &&
       !print_preview_context_.IsModifiable()) {
     PrintHostMsg_SetOptionsFromDocument_Params options;
     if (SetOptionsFromPdfDocument(&options))
       Send(new PrintHostMsg_SetOptionsFromDocument(routing_id(), options));
@@ skipping 343 matching lines @@
   // Render Pages for printing.
   if (!RenderPagesForPrint(frame_ref.GetFrame(), node)) {
     LOG(ERROR) << "RenderPagesForPrint failed";
     DidFinishPrinting(FAIL_PRINT);
   }
   scripting_throttler_.Reset();
 }
 #endif  // BUILDFLAG(ENABLE_BASIC_PRINTING)
 
 void PrintWebViewHelper::DidFinishPrinting(PrintingResult result) {
+  int cookie =
+      print_pages_params_ ? print_pages_params_->params.document_cookie : 0;
   switch (result) {
     case OK:
       break;
 
     case FAIL_PRINT_INIT:
       DCHECK(!notify_browser_of_print_failure_);
       break;
 
     case FAIL_PRINT:
       if (notify_browser_of_print_failure_ && print_pages_params_) {
-        int cookie = print_pages_params_->params.document_cookie;
         Send(new PrintHostMsg_PrintingFailed(routing_id(), cookie));
       }
       break;
 
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
     case FAIL_PREVIEW:
-      int cookie =
-          print_pages_params_ ? print_pages_params_->params.document_cookie : 0;
       if (notify_browser_of_print_failure_) {
         LOG(ERROR) << "CreatePreviewDocument failed";
         Send(new PrintHostMsg_PrintPreviewFailed(routing_id(), cookie));
       } else {
         Send(new PrintHostMsg_PrintPreviewCancelled(routing_id(), cookie));
       }
       print_preview_context_.Failed(notify_browser_of_print_failure_);
       break;
+    case INVALID_SETTINGS:
+      Send(new PrintHostMsg_PrintPreviewInvalidPrinterSettings(routing_id(),
+                                                               cookie));
+      print_preview_context_.Failed(false);
+      break;
 #endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)
   }
   prep_frame_view_.reset();
   print_pages_params_.reset();
   notify_browser_of_print_failure_ = true;
 }
 
 #if BUILDFLAG(ENABLE_BASIC_PRINTING)
 void PrintWebViewHelper::OnFramePreparedForPrintPages() {
   PrintPages();
@@ skipping 805 matching lines @@
       blink::WebConsoleMessage::kLevelWarning, message));
   return false;
 }
 
 void PrintWebViewHelper::ScriptingThrottler::Reset() {
   // Reset counter on successful print.
   count_ = 0;
 }
 
 }  // namespace printing