Some more improvements/fixes to the VulkanViewer

tools/vulkan/win/Window_win.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "Window_win.h"
 
 #include <tchar.h>
@@ skipping 244 matching lines @@
 
 void Window_win::setTitle(const char* title) {
     SetWindowTextA(fHWnd, title);
 }
 
 void Window_win::show() {
     ShowWindow(fHWnd, SW_SHOW);
 }
 
 
-bool Window_win::attach(BackEndTypes attachType, int msaaSampleCount, AttachmentInfo*) {
+bool Window_win::attach(BackEndType attachType, int msaaSampleCount, AttachmentInfo*) {
     if (kVulkan_BackendType != attachType) {
         return false;
     }
 
     ContextPlatformData_win platformData;
     platformData.fHInstance = fHInstance;
     platformData.fHWnd = fHWnd;
 
     fTestContext = VulkanTestContext::Create((void*)&platformData, msaaSampleCount);
 
     return (SkToBool(fTestContext));
 }