Add GN rules for forwarder2 and chromium_commands

build/config/android/rules.gni

Index: build/config/android/rules.gni
diff --git a/build/config/android/rules.gni b/build/config/android/rules.gni
index 76fda46bce3b2bfd517c63dbd0aff5dafa8e91d0..864a0cc9701fbe662b58e2908733aaa7226ef2d8 100644
--- a/build/config/android/rules.gni
+++ b/build/config/android/rules.gni
@@ -1055,6 +1055,7 @@ template("android_apk") {
   }
 
   if (_dist_jar_path != "") {
+    final_deps += [ ":${_template_name}__create_dist_jar" ]
     # TODO(cjhopman): This is only ever needed to calculate the list of tests to
     # run. See build/android/pylib/instrumentation/test_jar.py. We should be
     # able to just do that calculation at build time instead.
@@ -1190,6 +1191,7 @@ template("unittest_apk") {
     }
     datadeps = [
       "//tools/android/md5sum",
+      "//tools/android/forwarder2",
     ]
   }
 }