Extracted MetafilePlayer interface from printing::MetafilePlayer.

chrome/browser/ui/libgtk2ui/print_dialog_gtk2.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/browser/ui/libgtk2ui/print_dialog_gtk2.h"
 
 #include <gtk/gtkunixprint.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 343 matching lines @@
                                      gtk_settings_);
   g_signal_connect(dialog_, "response", G_CALLBACK(OnResponseThunk), this);
   gtk_widget_show(dialog_);
 
   // We need to call gtk_window_present after making the widgets visible to make
   // sure window gets correctly raised and gets focus.
   int time = views::X11DesktopHandler::get()->wm_user_time_ms();
   gtk_window_present_with_time(GTK_WINDOW(dialog_), time);
 }
 
-void PrintDialogGtk2::PrintDocument(const printing::Metafile* metafile,
-                                   const base::string16& document_name) {
+void PrintDialogGtk2::PrintDocument(const printing::MetafilePlayer& metafile,
+                                    const base::string16& document_name) {
   // This runs on the print worker thread, does not block the UI thread.
   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // The document printing tasks can outlive the PrintingContext that created
   // this dialog.
   AddRef();
 
-  bool error = false;
-  if (!base::CreateTemporaryFile(&path_to_pdf_)) {
-    LOG(ERROR) << "Creating temporary file failed";
-    error = true;
+  bool success = base::CreateTemporaryFile(&path_to_pdf_);
+
+  if (success) {
+    base::File file;
+    file.Initialize(path_to_pdf_,
+                    base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE);
+    success = metafile.SaveTo(&file);
+    file.Close();
+    if (!success)
+      base::DeleteFile(path_to_pdf_, false);
   }
 
-  if (!error && !metafile->SaveTo(path_to_pdf_)) {
+  if (!success) {
     LOG(ERROR) << "Saving metafile failed";
-    base::DeleteFile(path_to_pdf_, false);
-    error = true;
+    // Matches AddRef() above.
+    Release();
+    return;
   }
 
-  if (error) {
-    // Matches AddRef() above.
-    Release();
-  } else {
-    // No errors, continue printing.
-    BrowserThread::PostTask(
-        BrowserThread::UI, FROM_HERE,
-        base::Bind(&PrintDialogGtk2::SendDocumentToPrinter, this,
-                   document_name));
-  }
+  // No errors, continue printing.
+  BrowserThread::PostTask(
+      BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&PrintDialogGtk2::SendDocumentToPrinter, this, document_name));
 }
 
 void PrintDialogGtk2::AddRefToDialog() {
   AddRef();
 }
 
 void PrintDialogGtk2::ReleaseDialog() {
   Release();
 }
 
@@ skipping 126 matching lines @@
   context_->InitWithSettings(*settings);
 }
 
 void PrintDialogGtk2::OnWindowDestroying(aura::Window* window) {
   DCHECK_EQ(libgtk2ui::GetAuraTransientParent(dialog_), window);
 
   libgtk2ui::ClearAuraTransientParent(dialog_);
   window->RemoveObserver(this);
   Release();
 }