Update AccountManagerService checkKeyIntent. Block intents with "content" data scheme. Bug: 349780950 Test: manual Flag: EXEMPT bugfix (cherry picked from commit c1e79495a49bd4d3e380136fe4bca7ac1a9ed763) (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:b43f4aebb065059d7bf9bffc31c7893fff5133a1) Merged-In: I8b23191d3d60036ca7ddf0ef7dcba6b38fb27b3c Change-Id: I8b23191d3d60036ca7ddf0ef7dcba6b38fb27b3c