Move dump() to dumpAsync(), more oneway calls.

When calling out to dump services hosted by external apps, use
dumpAsync() to avoid hanging if the remote process is wedged.

Test: builds, boots, runs with minimal logs triggered
Bug: 32715088
Change-Id: I70aa2666ae21dae8f09ded2063bed359c0b210c5
diff --git a/services/core/java/com/android/server/InputMethodManagerService.java b/services/core/java/com/android/server/InputMethodManagerService.java
index 2698f95..2bf5866 100644
--- a/services/core/java/com/android/server/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/InputMethodManagerService.java
@@ -29,6 +29,7 @@
 import com.android.internal.inputmethod.InputMethodUtils.InputMethodSettings;
 import com.android.internal.os.HandlerCaller;
 import com.android.internal.os.SomeArgs;
+import com.android.internal.os.TransferPipe;
 import com.android.internal.util.FastXmlSerializer;
 import com.android.internal.view.IInputContext;
 import com.android.internal.view.IInputMethod;
@@ -4041,9 +4042,9 @@
         if (client != null) {
             pw.flush();
             try {
-                client.client.asBinder().dump(fd, args);
-            } catch (RemoteException e) {
-                p.println("Input method client dead: " + e);
+                TransferPipe.dumpAsync(client.client.asBinder(), fd, args);
+            } catch (IOException | RemoteException e) {
+                p.println("Failed to dump input method client: " + e);
             }
         } else {
             p.println("No input method client.");
@@ -4057,9 +4058,9 @@
             p.println(" ");
             pw.flush();
             try {
-                focusedWindowClient.client.asBinder().dump(fd, args);
-            } catch (RemoteException e) {
-                p.println("Input method client in focused window dead: " + e);
+                TransferPipe.dumpAsync(focusedWindowClient.client.asBinder(), fd, args);
+            } catch (IOException | RemoteException e) {
+                p.println("Failed to dump input method client in focused window: " + e);
             }
         }
 
@@ -4067,9 +4068,9 @@
         if (method != null) {
             pw.flush();
             try {
-                method.asBinder().dump(fd, args);
-            } catch (RemoteException e) {
-                p.println("Input method service dead: " + e);
+                TransferPipe.dumpAsync(method.asBinder(), fd, args);
+            } catch (IOException | RemoteException e) {
+                p.println("Failed to dump input method service: " + e);
             }
         } else {
             p.println("No input method service.");