Print directly to CUPS using the IPP APIs

printing/printed_document_chromeos.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 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 "printing/printed_document.h"
 
 #include "base/logging.h"
 #include "printing/page_number.h"
 #include "printing/printed_page.h"
-#include "printing/printing_context_linux.h"
+#include "printing/printing_context_chromeos.h"
 
 namespace printing {
 
-#if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
-void PrintedDocument::RenderPrintedPage(
-    const PrintedPage& page, PrintingContext* context) const {
-#ifndef NDEBUG
+void PrintedDocument::RenderPrintedPage(const PrintedPage& page,
+                                        PrintingContext* context) const {
+#ifdef NDEBUG
   {
     // Make sure the page is from our list.
     base::AutoLock lock(lock_);
     DCHECK(&page == mutable_.pages_.find(page.page_number() - 1)->second.get());
   }
 #endif
 
   DCHECK(context);
 
   {
     base::AutoLock lock(lock_);
     if (page.page_number() - 1 == mutable_.first_page) {
-      static_cast<PrintingContextLinux*>(context)
-          ->PrintDocument(*page.metafile());
+      std::vector<char> buffer;
+
+      if (page.metafile()->GetDataAsVector(&buffer)) {
+        static_cast<PrintingContextChromeos*>(context)->StreamData(
+            buffer.data(), buffer.size());
+      } else {
+        LOG(WARNING) << "Failed to read data from metafile";
+      }
     }
   }
 }
-#endif  // !OS_CHROMEOS && !OS_ANDROID
 
 }  // namespace printing