Add support for Input ads from the SDK runtime.

Symtom: EditText created from the SDK runtime is not able to accept
input using the soft keyboard. The root cause is a failed check in
ImeService when it tries to match the caller uid with the uid PM
associates with the sdk sandbox package. Since SDK sandbox package can
be running in a process that can have a UID from a range, rather than a
single UID, this check often fails.

Updated the check to use a PackageManager method that understands this
nuance about sdk sandbox package and ensures the UID falls within the
range of sdk sandbox UIDs.

Bug: b/242985591
Test: Using the SDK sandbox manual test app.
Change-Id: I3da937bf379f39c8204db5b7d7d1c41c6a6e942e

services/core/java/com/android/server/inputmethod/InputMethodUtils.java

@@ -194,8 +194,8 @@ final class InputMethodUtils {
             int uid, String packageName) {
         // PackageManagerInternal#getPackageUid() doesn't check MATCH_INSTANT/MATCH_APEX as of
         // writing. So setting 0 should be fine.
-        return packageManagerInternal.getPackageUid(packageName, 0 /* flags */,
-                UserHandle.getUserId(uid)) == uid;
+        return packageManagerInternal.isSameApp(packageName, /* flags= */ 0, uid,
+            UserHandle.getUserId(uid));
     }
 
     /**

services/tests/InputMethodSystemServerTests/src/com/android/server/inputmethod/InputMethodManagerServiceTestBase.java

@@ -207,6 +207,8 @@ public class InputMethodManagerServiceTestBase {
         when(mMockActivityManagerInternal.isSystemReady()).thenReturn(true);
         when(mMockPackageManagerInternal.getPackageUid(anyString(), anyLong(), anyInt()))
                 .thenReturn(Binder.getCallingUid());
+        when(mMockPackageManagerInternal.isSameApp(anyString(), anyLong(), anyInt(), anyInt()))
+            .thenReturn(true);
         when(mMockWindowManagerInternal.onToggleImeRequested(anyBoolean(), any(), any(), anyInt()))
                 .thenReturn(TEST_IME_TARGET_INFO);
         when(mMockInputMethodClient.asBinder()).thenReturn(mMockInputMethodBinder);