Fix WebView targetSDK checks.

The 4.4W SDK bump between K and L means that apps running on L that
are compiled with targetSDK 20 are picking up some features only
intended to be enabled on L devices, due to erroneous target SDK
checks that didn't take 4.4W into account.

Bug: 18385629
Change-Id: Ia7996e948f9902c535e9f7fa7dea5b05db0a1aa0
(cherry picked from commit 12399ba4bb12154b7897cf88bee04aca0adeb770)
2 files changed
tree: ae2cfe4a4caf950e163356683a66f53aa0ff6cde
  1. chromium/
  2. nullwebview/
  3. Android.mk