Add generic text printing

chrome/browser/printing/print_job.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/printing/print_job.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 300 matching lines @@
 
   // Update the rendered document. It will send notifications to the listener.
   document_->SetPage(pdf_page_mapping_[page_number], std::move(metafile),
                      scale_factor, pdf_conversion_state_->page_size(),
                      pdf_conversion_state_->content_area());
 
   pdf_conversion_state_->GetMorePages(
       base::Bind(&PrintJob::OnPdfPageConverted, this));
 }
 
+void PrintJob::StartPdfToTextConversion(
+    const scoped_refptr<base::RefCountedMemory>& bytes,
+    const gfx::Size& page_size) {
+  DCHECK(!pdf_conversion_state_);
+  pdf_conversion_state_ =
+      base::MakeUnique<PdfConversionState>(gfx::Size(), gfx::Rect());
+  const int kPrinterDpi = settings().dpi();
+  gfx::Rect page_area = gfx::Rect(0, 0, page_size.width(), page_size.height());
+  PdfRenderSettings settings(page_area, gfx::Point(0, 0), kPrinterDpi,
+                             /*autorotate=*/true,
+                             PdfRenderSettings::Mode::TEXTONLY);
+  pdf_conversion_state_->Start(
+      bytes, settings, base::Bind(&PrintJob::OnPdfConversionStarted, this));
+}
+
 void PrintJob::StartPdfToPostScriptConversion(
     const scoped_refptr<base::RefCountedMemory>& bytes,
     const gfx::Rect& content_area,
     const gfx::Point& physical_offsets,
     bool ps_level2) {
   DCHECK(!pdf_conversion_state_);
   pdf_conversion_state_ = base::MakeUnique<PdfConversionState>(
       gfx::Size(), gfx::Rect());
   const int kPrinterDpi = settings().dpi();
   PdfRenderSettings settings(
@@ skipping 142 matching lines @@
     : document_(document), page_(page), type_(type), job_id_(job_id) {}
 
 JobEventDetails::~JobEventDetails() {
 }
 
 PrintedDocument* JobEventDetails::document() const { return document_.get(); }
 
 PrintedPage* JobEventDetails::page() const { return page_.get(); }
 
 }  // namespace printing