Add media size capability to PDF printer.

chrome/browser/ui/webui/print_preview/print_preview_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 157 matching lines @@
   void HandleManagePrinters(const base::ListValue* args);
 
   // Asks the browser to show the cloud print dialog. |args| is signle int with
   // page count.
   void HandlePrintWithCloudPrintDialog(const base::ListValue* args);
 
   // Asks the browser for several settings that are needed before the first
   // preview is displayed.
   void HandleGetInitialSettings(const base::ListValue* args);
 
+  // Asks the browser for the PDF printer capabilities, such as media size.
+  void HandleGetPdfCapabilities(const base::ListValue* args);
+
   // Reports histogram data for a print preview UI action. |args| should consist
   // of two elements: the bucket name, and the bucket event.
   void HandleReportUiEvent(const base::ListValue* args);
 
   // Forces the opening of a new tab. |args| should consist of one element: the
   // URL to set the new tab to.
   //
   // NOTE: This is needed to open FedEx confirmation window as a new tab.
   // Javascript's "window.open" opens a new window popup (since initiated from
   // async HTTP request) and worse yet, on Windows and Chrome OS, the opened
   // window opens behind the initiator window.
   void HandleForceOpenNewTab(const base::ListValue* args);
 
   void HandleGetPrivetPrinterCapabilities(const base::ListValue* arg);
 
   void SendInitialSettings(const std::string& default_printer);
 
+  // Sends PDF printer capabilities to the Web UI.
+  void SendPdfCapabilities(const base::DictionaryValue* capabilities);
+
   // Send OAuth2 access token.
   void SendAccessToken(const std::string& type,
                        const std::string& access_token);
 
   // Sends the printer capabilities to the Web UI. |settings_info| contains
   // printer capabilities information.
   void SendPrinterCapabilities(const base::DictionaryValue* settings_info);
 
   // Sends error notification to the Web UI when unable to return the printer
   // capabilities.
@@ skipping 118 matching lines @@
   scoped_ptr<local_discovery::PrivetLocalPrintOperation>
       privet_local_print_operation_;
 #endif
 
   base::WeakPtrFactory<PrintPreviewHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_PRINT_PREVIEW_HANDLER_H_