[ Merge of http://go/wvgerrit/191139 ] Adding an initial flag that include identifiable differences when the feature is enabled or disabled. This is the same commit as ag/25837302. It was reverted due to memory size issues. A follow on CL will address that issue to ease review. Bug: 311951236 Test: WVTS tests Change-Id: I995fb8f4158b3529c2d19a2ee5fd8beec0019f7c