SkLeanWindows.h: #include "Windows.h" fewer places

src/gpu/gl/win/GrGLCreateNativeInterface_win.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkTypes.h"
 #if defined(SK_BUILD_FOR_WIN32)
 
+#include "SkLeanWindows.h"
+
 #include "gl/GrGLInterface.h"
 #include "gl/GrGLAssembleInterface.h"
 #include "gl/GrGLUtil.h"
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
 
 class AutoLibraryUnload {
 public:
     AutoLibraryUnload(const char* moduleName) {
         fModule = LoadLibraryA(moduleName);
     }
     ~AutoLibraryUnload() {
         if (fModule) {
             FreeLibrary(fModule);
         }
@@ skipping 56 matching lines @@
 
     if (kGLES_GrGLStandard == standard) {
         return GrGLAssembleGLESInterface(&getter, win_get_gl_proc);
     } else if (kGL_GrGLStandard == standard) {
         return GrGLAssembleGLInterface(&getter, win_get_gl_proc);
     }
     return nullptr;
 }
 
 #endif//defined(SK_BUILD_FOR_WIN32)