Add BiometricPromptService

The change introduces the following:
  - BiometricPrompt communicatates with BiometricPromptService (new)
    system service. The service does the decision making for which
    biometric modality to use.
  - As a result, a lot of logic is moved from <Biometric>Manager
    to BiometricPrompt. FingerprintManager now does not care about
    BiometricPrompt logic anymore (reverts several P changes).

Face, and all future <Biometric>Service interfaces must be protected by
the signature-only MANAGE_BIOMETRIC permission. Settings, SystemUI, and
BiometricPromptService are their only clients.

Bug: 72825012

Test: BiometricPromptDemo works
Test: Keyguard works
Test: Settings works

Change-Id: I2b7d6eff81bc07950202c50e592d733032523bf0

1 files changed, 9 insertions, 0 deletions

diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index a352e84b060e..4fb21f3ad5e3 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -3672,6 +3672,15 @@ public abstract class Context {
     public static final String AUDIO_SERVICE = "audio";
 
     /**
+     * Use with {@link #getSystemService(String)}
+     *
+     * @hide
+     * @see #getSystemService(String)
+     * @see com.android.server.biometrics.BiometricPromptService
+     */
+    public static final String BIOMETRIC_PROMPT_SERVICE = "biometric_prompt";
+
+    /**
      * Use with {@link #getSystemService(String)} to retrieve a
      * {@link android.hardware.fingerprint.FingerprintManager} for handling management
      * of fingerprints.