Rename OS(DARWIN) to OS(MACOSX).

Source/core/html/canvas/WebGLRenderingContext.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1989 matching lines @@
         return;
     if (!tex->canGenerateMipmaps()) {
         synthesizeGLError(GraphicsContext3D::INVALID_OPERATION, "generateMipmap", "level 0 not power of 2 or not all the same size");
         return;
     }
     if (!validateSettableTexFormat("generateMipmap", tex->getInternalFormat(target, 0)))
         return;
 
     // generateMipmap won't work properly if minFilter is not NEAREST_MIPMAP_LINEAR
     // on Mac.  Remove the hack once this driver bug is fixed.
-#if OS(DARWIN)
+#if OS(MACOSX)
     bool needToResetMinFilter = false;
     if (tex->getMinFilter() != GraphicsContext3D::NEAREST_MIPMAP_LINEAR) {
         m_context->texParameteri(target, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::NEAREST_MIPMAP_LINEAR);
         needToResetMinFilter = true;
     }
 #endif
     m_context->generateMipmap(target);
-#if OS(DARWIN)
+#if OS(MACOSX)
     if (needToResetMinFilter)
         m_context->texParameteri(target, GraphicsContext3D::TEXTURE_MIN_FILTER, tex->getMinFilter());
 #endif
     tex->generateMipmapLevelInfo();
 }
 
 PassRefPtr<WebGLActiveInfo> WebGLRenderingContext::getActiveAttrib(WebGLProgram* program, GC3Duint index)
 {
     if (isContextLost() || !validateWebGLObject("getActiveAttrib", program))
         return 0;
@@ skipping 1043 matching lines @@
     }
 
     clearIfComposited();
     void* data = pixels->baseAddress();
 
     {
         ScopedDrawingBufferBinder binder(m_drawingBuffer.get(), m_framebufferBinding.get());
         m_context->readPixels(x, y, width, height, format, type, data);
     }
 
-#if OS(DARWIN)
+#if OS(MACOSX)
     // FIXME: remove this section when GL driver bug on Mac is fixed, i.e.,
     // when alpha is off, readPixels should set alpha to 255 instead of 0.
     if (!m_framebufferBinding && !m_context->getContextAttributes().alpha) {
         unsigned char* pixels = reinterpret_cast<unsigned char*>(data);
         for (GC3Dsizei iy = 0; iy < height; ++iy) {
             for (GC3Dsizei ix = 0; ix < width; ++ix) {
                 pixels[3] = 255;
                 pixels += 4;
             }
             pixels += padding;
@@ skipping 2476 matching lines @@
         if (m_textureUnits[i].m_texture2DBinding
             || m_textureUnits[i].m_textureCubeMapBinding) {
             m_onePlusMaxNonDefaultTextureUnit = i + 1;
             return;
         }
     }
     m_onePlusMaxNonDefaultTextureUnit = 0;
 }
 
 } // namespace WebCore