(Reland x3) Expose resources in Robolectric/JUnit tests.

build/config/android/rules.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Do not add any imports to non-//build directories here.
 # Some projects (e.g. V8) do not have non-build directories DEPS'ed in.
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/dcheck_always_on.gni")
@@ skipping 1066 matching lines @@
   #     java_files = [ "org/chromium/foo/FooTest.java" ]
   #     deps = [ ":bar_java" ]
   #   }
   template("junit_binary") {
     set_sources_assignment_filter([])
     testonly = true
 
     _java_binary_target_name = "${target_name}__java_binary"
     _test_runner_target_name = "${target_name}__test_runner_script"
 
+    _build_config = "$target_gen_dir/$target_name.build_config"
+    _build_config_target_name = "${target_name}__build_config"
+    write_build_config(_build_config_target_name) {
+      type = "junit_binary"
+      build_config = _build_config
+      if (defined(invoker.deps)) {
+        possible_config_deps = invoker.deps
+      }
+    }
+
     test_runner_script(_test_runner_target_name) {
       test_name = invoker.target_name
       test_suite = invoker.target_name
       test_type = "junit"
       ignore_all_data_deps = true
+      forward_variables_from(invoker,
+                             [
+                               "android_manifest_path",
+                               "package_name",
+                             ])
     }
 
     java_binary(_java_binary_target_name) {
       deps = []
       output_name = invoker.target_name
       forward_variables_from(invoker, "*")
       testonly = true
       bypass_platform_checks = true
       main_class = "org.chromium.testing.local.JunitTestMain"
       wrapper_script_name = "helper/$target_name"
       deps += [
         "//testing/android/junit:junit_test_support",
         "//third_party/junit",
         "//third_party/mockito:mockito_java",
         "//third_party/robolectric:robolectric_all_java",
       ]
     }
     group(target_name) {
       public_deps = [
+        ":$_build_config_target_name",
         ":$_java_binary_target_name",
         ":$_test_runner_target_name",
       ]
     }
   }
 
   # Declare a java library target
   #
   # Variables
   #   deps: Specifies the dependencies of this target. Java targets in this list
@@ skipping 1816 matching lines @@
         # because in practice they seem to contain classes required to be in the
         # classpath.
         deps += _subjar_targets
       }
       if (defined(_res_target_name)) {
         deps += [ ":$_res_target_name" ]
       }
     }
   }
 }