Persisted log parser for incident reporting

Add persisted log section (section 1116) in incident report. Since
persisted logs are only stored in /data/misc/logd in plain text
format with interleaving log buffers, incidentd must use a dedicated
parser to parse them into protobuf, and it is more efficient to store
all buffers in a single section.

Implementation details: incidentd invokes incident-helper-cmd, who
reads all persisted log files in /data/misc/logd dir matching
logcat.* pattern, parses them line by line into TextLogEntry, and
passes the data back to incidentd through stdout in protobuf wire
format.

Command to invoke persisted log directly:
$ incident-helper-cmd run persisted_logs

Bug: 146086597
Test: adb shell incident -p EXPLICIT 1116 | \
      .out/soong/host/linux-x86/bin/aprotoc --decode_raw
Change-Id: I163cc47f1b34a58b404d7b7485ff47d8893e3bdd
diff --git a/cmds/incident_helper/Android.bp b/cmds/incident_helper/Android.bp
index d7b6d69..64f4c66 100644
--- a/cmds/incident_helper/Android.bp
+++ b/cmds/incident_helper/Android.bp
@@ -1,3 +1,28 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+java_binary {
+    name: "incident-helper-cmd",
+    wrapper: "incident_helper_cmd",
+    srcs: [
+        "java/**/*.java",
+    ],
+    proto: {
+        plugin: "javastream",
+    },
+}
+
 cc_defaults {
     name: "incident_helper_defaults",