Remove array allocation during SystemParametersInfo cache invalidation

[h3xds1nz]

Description

Removes array allocation during SystemParametersInfo cache invalidation when a theme is changed, saving unnecessary allocation and overhead. We could alternatively keep it in method, while that removes the allocation it won't provide the 10ns execution benefit due to the stack init, and imho there's no reason why it couldn't be outside method, there's no readibility issue.

Method execution difference

Method	Mean [ns]	Error [ns]	StdDev [ns]	Gen0	Code Size [B]	Allocated [B]
ORIIGINAL	58.89 ns	0.889 ns	0.832 ns	0.0119	424 B	200 B
PR__EDIT	47.03 ns	0.198 ns	0.176 ns	-	60 B	-

Customer Impact

Improved performance, decreased allocations.

Regression

No.

Testing

Local build.

Risk

Minimal, just getting the data from binary directly instead of heap-allocating an array.

Microsoft Reviewers: Open in CodeFlow