Windows: Make it possible to print text with GDI.

chrome/utility/printing_handler.cc

 // Copyright 2014 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/utility/printing_handler.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/files/file_util.h"
@@ skipping 22 matching lines @@
 namespace {
 
 bool Send(IPC::Message* message) {
   return content::UtilityThread::Get()->Send(message);
 }
 
 void ReleaseProcessIfNeeded() {
   content::UtilityThread::Get()->ReleaseProcessIfNeeded();
 }
 
+#if defined(OS_WIN)
+void PreCacheFontCharacters(const LOGFONT* logfont,
+                            const wchar_t* text,
+                            size_t text_length) {
+  Send(new ChromeUtilityHostMsg_PreCacheFontCharacters(
+      *logfont, base::string16(text, text_length)));
+}
+#endif
+
 }  // namespace
 
-PrintingHandler::PrintingHandler() {}
+PrintingHandler::PrintingHandler() {
+#if defined(OS_WIN)
+  chrome_pdf::SetPDFEnsureTypefaceCharactersAccessible(PreCacheFontCharacters);
+#endif
+}
 
 PrintingHandler::~PrintingHandler() {}
 
 bool PrintingHandler::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PrintingHandler, message)
 #if defined(OS_WIN)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RenderPDFPagesToMetafiles,
                         OnRenderPDFPagesToMetafile)
     IPC_MESSAGE_HANDLER(ChromeUtilityMsg_RenderPDFPagesToMetafiles_GetPage,
@@ skipping 10 matching lines @@
                         OnGetPrinterSemanticCapsAndDefaults)
 #endif  // ENABLE_PRINT_PREVIEW
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 #if defined(OS_WIN)
 void PrintingHandler::OnRenderPDFPagesToMetafile(
     IPC::PlatformFileForTransit pdf_transit,
-    const PdfRenderSettings& settings) {
+    const PdfRenderSettings& settings,
+    bool print_text_with_gdi) {
   pdf_rendering_settings_ = settings;
+  chrome_pdf::SetPDFUseGDIPrinting(print_text_with_gdi);
   base::File pdf_file = IPC::PlatformFileForTransitToFile(pdf_transit);
   int page_count = LoadPDF(std::move(pdf_file));
   Send(
       new ChromeUtilityHostMsg_RenderPDFPagesToMetafiles_PageCount(page_count));
 }
 
 void PrintingHandler::OnRenderPDFPagesToMetafileGetPage(
     int page_number,
     IPC::PlatformFileForTransit output_file) {
   base::File emf_file = IPC::PlatformFileForTransitToFile(output_file);
@@ skipping 216 matching lines @@
         printer_name, printer_info));
   } else {
     Send(new ChromeUtilityHostMsg_GetPrinterSemanticCapsAndDefaults_Failed(
         printer_name));
   }
   ReleaseProcessIfNeeded();
 }
 #endif  // ENABLE_PRINT_PREVIEW
 
 }  // namespace printing