Multiprocess test client: Android child process launcher rework.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index d5ec8075ad7676eee0bfeb30aca221a98d0190a9..4ec856f590ec753083116b74665427d118dc7432 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -2145,10 +2145,15 @@ test("base_unittests") {
   }
 
   if (is_android) {
+    sources -= [
+      "process/process_unittest.cc",
+      "process/process_util_unittest.cc",
+    ]
     deps += [
       ":base_java",
       ":base_java_unittest_support",
       "//base/android/jni_generator:jni_generator_tests",
+      "//base/test:test_support_java",
     ]
   }