Fixed print_web_view_helper for CEF.

printing/printing_context_win.h

 // Copyright (c) 2011 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.
 
 #ifndef PRINTING_PRINTING_CONTEXT_WIN_H_
 #define PRINTING_PRINTING_CONTEXT_WIN_H_
 
 #include <ocidl.h>
 #include <commdlg.h>
 
@@ skipping 22 matching lines @@
                                        bool show_system_dialog) OVERRIDE;
   virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE;
   virtual Result NewDocument(const base::string16& document_name) OVERRIDE;
   virtual Result NewPage() OVERRIDE;
   virtual Result PageDone() OVERRIDE;
   virtual Result DocumentDone() OVERRIDE;
   virtual void Cancel() OVERRIDE;
   virtual void ReleaseContext() OVERRIDE;
   virtual gfx::NativeDrawingContext context() const OVERRIDE;
 
+  // Allocates the HDC for a specific DEVMODE.
+  static bool AllocateContext(const std::wstring& printer_name,

[Vitaly Buka (NO REVIEWS), 2014/09/08 09:43:59]

I'll restore this under !DISABLE_BASIC_PRINTING which would be defined on
Windows

+                              const DEVMODE* dev_mode,
+                              gfx::NativeDrawingContext* context);
+
  protected:
-  virtual scoped_ptr<DEVMODE, base::FreeDeleter> ShowPrintDialog(
-      HANDLE printer,
-      gfx::NativeView parent_view,
-      DEVMODE* dev_mode);
+  virtual HRESULT ShowPrintDialog(PRINTDLGEX* options);
 
  private:
+  // Class that manages the PrintDlgEx() callbacks. This is meant to be a
+  // temporary object used during the Print... dialog display.
+  class CallbackHandler;
+
   // Used in response to the user canceling the printing.
   static BOOL CALLBACK AbortProc(HDC hdc, int nCode);
 
   // Reads the settings from the selected device context. Updates settings_ and
   // its margins.
-  virtual Result InitializeSettings(const base::string16& device_name,
-                                    DEVMODE* dev_mode);
+  bool InitializeSettings(const DEVMODE& dev_mode,
+                          const std::wstring& new_device_name,
+                          const PRINTPAGERANGE* ranges,
+                          int number_ranges,
+                          bool selection_only);
+
+  // Retrieves the printer's default low-level settings. On Windows, context_ is
+  // allocated with this call.
+  bool GetPrinterSettings(HANDLE printer,
+                          const std::wstring& device_name);
+
+  // Parses the result of a PRINTDLGEX result.
+  Result ParseDialogResultEx(const PRINTDLGEX& dialog_options);
+  Result ParseDialogResult(const PRINTDLG& dialog_options);
 
   // The selected printer context.
   HDC context_;
 
+  // The dialog box for the time it is shown.
+  volatile HWND dialog_box_;
+
   DISALLOW_COPY_AND_ASSIGN(PrintingContextWin);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTING_CONTEXT_WIN_H_