nullptr isn't an int; this is what we want

src/gpu/gl/mesa/SkMesaGLContext.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 <GL/osmesa.h>
 
 #include "gl/mesa/SkMesaGLContext.h"
 #include "gl/GrGLDefines.h"
 
 static const GrGLint gBOGUS_SIZE = 16;
 
 SkMesaGLContext::SkMesaGLContext()
-    : fContext(static_cast<Context>(nullptr))
+    : fContext(static_cast<Context>(0))
     , fImage(nullptr) {
     GR_STATIC_ASSERT(sizeof(Context) == sizeof(OSMesaContext));
 
     /* Create an RGBA-mode context */
 #if OSMESA_MAJOR_VERSION * 100 + OSMESA_MINOR_VERSION >= 305
     /* specify Z, stencil, accum sizes */
     fContext = (Context)OSMesaCreateContextExt(OSMESA_BGRA, 0, 0, 0, nullptr);
 #else
     fContext = (Context)OSMesaCreateContext(OSMESA_BGRA, nullptr);
 #endif
@@ skipping 44 matching lines @@
 }
 
 void SkMesaGLContext::destroyGLContext() {
     if (fImage) {
         sk_free(fImage);
         fImage = nullptr;
     }
 
     if (fContext) {
         OSMesaDestroyContext((OSMesaContext)fContext);
-        fContext = static_cast<Context>(nullptr);
+        fContext = static_cast<Context>(0);
     }
 }
 
 
 
 void SkMesaGLContext::onPlatformMakeCurrent() const {
     if (fContext) {
         if (!OSMesaMakeCurrent((OSMesaContext)fContext, fImage,
                                GR_GL_UNSIGNED_BYTE, gBOGUS_SIZE, gBOGUS_SIZE)) {
             SkDebugf("Could not make MESA context current.");
         }
     }
 }
 
 void SkMesaGLContext::onPlatformSwapBuffers() const { }
 
 GrGLFuncPtr SkMesaGLContext::onPlatformGetProcAddress(const char* procName) const {
     return OSMesaGetProcAddress(procName);
 }