Create shim utility class for Android U
This commit creates a shim utility class for U specific behaviors.
This commit also refactors shim utility classes so that a shim class
for SDK X always inherents from class for SDK X-1 for better
maintainability.
Bug: 261499808
Test: atest FrameworksIkeTests(new tests), CtsIkeTestCases
Change-Id: If886f767a1d4a749e64dffc31da4b1139197e15d
(cherry picked from commit 8a5cbc937433cccf006c622c4be9103af60bd932)
Merged-In: If886f767a1d4a749e64dffc31da4b1139197e15d
7 files changed