Reland of Add automated testing to check for page size with scaling

components/printing/test/mock_printer.h

 // 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.
 
 #ifndef COMPONENTS_PRINTING_TEST_MOCK_PRINTER_H_
 #define COMPONENTS_PRINTING_TEST_MOCK_PRINTER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 67 matching lines @@
 
   // Functions that handles IPC events.
   void GetDefaultPrintSettings(PrintMsg_Print_Params* params);
   void ScriptedPrint(int cookie,
                      int expected_pages_count,
                      bool has_selection,
                      PrintMsg_PrintPages_Params* settings);
   void UpdateSettings(int cookie,
                       PrintMsg_PrintPages_Params* params,
                       const std::vector<int>& page_range_array,
-                      int margins_type);
+                      int margins_type,
+                      const gfx::Size& page_size,
+                      int scale_factor);
   void SetPrintedPagesCount(int cookie, int number_pages);
   void PrintPage(const PrintHostMsg_DidPrintPage_Params& params);
 
   // Functions that retrieve the output pages.
   Status GetPrinterStatus() const { return printer_status_; }
   int GetPrintedPages() const;
 
   // Get a pointer to the printed page, returns NULL if pageno has not been
   // printed.  The pointer is for read only view and should not be deleted.
   const MockPrinterPage* GetPrintedPage(unsigned int pageno) const;
@@ skipping 59 matching lines @@
 
   // Used for generating invalid settings.
   bool use_invalid_settings_;
 
   std::vector<scoped_refptr<MockPrinterPage>> pages_;
 
   DISALLOW_COPY_AND_ASSIGN(MockPrinter);
 };
 
 #endif  // COMPONENTS_PRINTING_TEST_MOCK_PRINTER_H_