We never render directly to the front buffer, and in case of e.g. a P8 front
buffer, we would fail surface creation if we were to enforce format
restrictions.

wined3d: Use clamp() instead of max() for calculating the clamped cosine in the ffp lighting calculations.

On typical hardware, the clamp() would be an instruction modifier, while the
max() would need an extra instruction.

crypt32: Use CERT_CHAIN_CACHE_ONLY_URL_RETRIEVAL flag for root store certificate's chain validation.

d3dx9: Use the ID3DXInclude object to open the initial file in D3DX[Assemble|Compile|Preprocess]ShaderFromFile.

There's nothing particularly fake about the GL context.

winemac: When ordering sibling child windows, don't remove and re-add ones already in the right order.

winemac: Don't use Cocoa parent-child relationship when topmost state is enough to keep owned in front of owner.

The Cocoa parent-child relationship has undesirable side effects and bugs.  In
the general case, it's the only way to maintain the z-order of owned windows
relative to their owner.  But when the owner is non-topmost and an owned
window is topmost, the Cocoa window level will enforce that and we don't
need it.