components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/printing/test/print_mock_render_thread.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 COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_
 #define COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
+#include "base/single_thread_task_runner.h"
 #include "content/public/test/mock_render_thread.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 class MockPrinter;
 struct PrintHostMsg_DidGetPreviewPageCount_Params;
 struct PrintHostMsg_DidPreviewPage_Params;
 struct PrintHostMsg_DidPrintPage_Params;
 struct PrintHostMsg_ScriptedPrint_Params;
 struct PrintMsg_PrintPages_Params;
 struct PrintMsg_Print_Params;
 
 // Extends content::MockRenderThread to know about printing
 class PrintMockRenderThread : public content::MockRenderThread {
  public:
   PrintMockRenderThread();
   ~PrintMockRenderThread() override;
 
   // content::RenderThread overrides.
   scoped_refptr<base::SingleThreadTaskRunner> GetIOMessageLoopProxy() override;
 
   //////////////////////////////////////////////////////////////////////////
   // The following functions are called by the test itself.
 
   // Set IO message loop proxy.
   void set_io_message_loop_proxy(
-      const scoped_refptr<base::MessageLoopProxy>& proxy);
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
 
 #if defined(ENABLE_PRINTING)
   // Returns the pseudo-printer instance.
   MockPrinter* printer();
 
   // Call with |response| set to true if the user wants to print.
   // False if the user decides to cancel.
   void set_print_dialog_user_response(bool response);
 
   // Cancel print preview when print preview has |page| remaining pages.
@@ skipping 44 matching lines @@
   bool print_dialog_user_response_;
 
   // Simulates cancelling print preview if |print_preview_pages_remaining_|
   // equals this.
   int print_preview_cancel_page_number_;
 
   // Number of pages to generate for print preview.
   int print_preview_pages_remaining_;
 #endif
 
-  scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
+  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintMockRenderThread);
 };
 
 #endif  // COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_