Prepare role code for modularization.

- PooledLambda: PoolLambda is replaced with plain lambdas, to avoid
adding ~20 classes to boot classpath (for each module that uses
lambda).

- SystemServiceRegistry: RoleFrameworkInitializer is added to add
ROLE_SERVICE, similar to other modules.

- RoleService: RoleManagerService is renamed to RoleService to better
reflect the manager/service relationship.

- @MainThread: import for Looper is removed because it's only used in
javadoc and triggers package not exist error during build. @linkplain
in the javadoc is also removed because it triggers an error in
Metalava parsing and isn't critical.

- Added small utilities: These utilities has their full version in
platform, but is too large and contains too many internal references
in methods unreferenced by role, whereas actually role only needs 1 or
2 methods from them. So just create a small copy of the used methods
for role modularization, and they will be moved into APEX with role.

Bug: 158736025
Test: manual
Change-Id: I74f20b37d23370e258e7fc7130e28c5312abf46c

1 files changed, 1 insertions, 4 deletions

diff --git a/core/java/android/annotation/MainThread.java b/core/java/android/annotation/MainThread.java
index 556fdb4e7742..a070246e5ef3 100644
--- a/core/java/android/annotation/MainThread.java
+++ b/core/java/android/annotation/MainThread.java
@@ -21,8 +21,6 @@ import static java.lang.annotation.ElementType.PARAMETER;
 import static java.lang.annotation.ElementType.TYPE;
 import static java.lang.annotation.RetentionPolicy.SOURCE;
 
-import android.os.Looper;
-
 import java.lang.annotation.Retention;
 import java.lang.annotation.Target;
 
@@ -40,8 +38,7 @@ import java.lang.annotation.Target;
  * </code>
  * </pre>
  *
- * @memberDoc This method must be called from the
- *            {@linkplain Looper#getMainLooper() main thread} of your app.
+ * @memberDoc This method must be called from the main thread of your app.
  * @hide
  */
 @Retention(SOURCE)