Send explicit broadcasts to SET_GRPC and ENABLE_A11Y_TREE_LOGS.

changes:
-add component field to SendBroadcast in AdbRequest
-change the send broadcast function in the call parser to pass the component name if present in the request
-in the a11y grpc wrapper, set the component name to match FlagsBroadcastReceiver
PiperOrigin-RevId: 581326914

android_env/components/adb_call_parser.py

@@ -230,16 +230,32 @@ def _send_broadcast(
       An AdbResponse.
     """
 
-    send_brodcast = request.send_broadcast
+    send_broadcast = request.send_broadcast
     response = adb_pb2.AdbResponse(status=adb_pb2.AdbResponse.Status.OK)
-    if not send_brodcast.action:
+    if not send_broadcast.action:
       response.status = adb_pb2.AdbResponse.Status.FAILED_PRECONDITION
       response.error_message = ('`send_broadcast.{action}` cannot be empty.')
       return response
 
-    response, _ = self._execute_command(
-        ['shell', 'am', 'broadcast', '-a', send_brodcast.action],
-        timeout=timeout)
+    if send_broadcast.component:
+      response, _ = self._execute_command(
+          [
+              'shell',
+              'am',
+              'broadcast',
+              '-a',
+              send_broadcast.action,
+              '-n',
+              send_broadcast.component,
+          ],
+          timeout=timeout,
+      )
+    else:
+      response, _ = self._execute_command(
+          ['shell', 'am', 'broadcast', '-a', send_broadcast.action],
+          timeout=timeout,
+      )
+
     return response
 
   def _install_apk(

android_env/proto/adb.proto

@@ -52,6 +52,11 @@ message AdbRequest {
   message SendBroadcast {
     // Action to send during the broadcast event.
     string action = 1;
+
+    // Specify the component name with package name prefix to create an explicit
+    // intent, such as com.example.app/.ExampleActivity (see -n specification at
+    // https://developer.android.com/tools/adb#IntentSpec).
+    string component = 2;
   }
 
   message UninstallPackage {