[android] Fix robolectric shadows-core jar names.

third_party/robolectric/BUILD.gn

 # Copyright 2015 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.
 
 import("//build/config/android/rules.gni")
 
 java_group("robolectric_all_java") {
   testonly = true
   deps = [
     ":android-all-5.0.0_r2-robolectric-1_java",
@@ skipping 570 matching lines @@
 
     inputs = _template_files
     outputs = _processed_template_files
 
     deps = [
       ":robolectric_template_processor",
     ]
   }
 
   java_library(target_name) {
+    forward_variables_from(invoker, [ "output_name" ])
+
     # TODO(mikecase): Remove this once crbug.com/638875 is fixed.
     enable_incremental_javac_override = false
 
     testonly = true
     processors_javac =
         [ "org.robolectric.annotation.processing.RobolectricProcessor" ]
     processor_args_javac = [ "org.robolectric.annotation.processing.shadowPackage=org.robolectric" ]
     provider_configurations = [
       "robolectric/robolectric-shadows/resources/META-INF/services/org.robolectric.internal.ShadowProvider",
       "robolectric/robolectric-shadows/shadows-core/src/main/resources/META-INF/services/org.robolectric.ShadowsAdapter",
@@ skipping 46 matching lines @@
     deps += invoker.android_sdk_deps
 
     # Work-around for gradle generator not yet supporting annotation processors.
     gradle_treat_as_prebuilt = true
   }
 }
 
 shadows_core("shadows-core-3.0-21_java") {
   api_level = 21
   android_sdk_deps = [ ":android-all-5.0.0_r2-robolectric-1_java" ]
+  output_name = "shadows-core-3.0-21"
 }
 
 shadows_core("shadows-core-3.0-18_java") {
   api_level = 18
   android_sdk_deps = [ ":android-all-4.3_r2-robolectric-0_java" ]
+  output_name = "shadows-core-3.0-18"
 }
 
 java_library("shadows-multidex-3.0_java") {
   testonly = true
   processors_javac =
       [ "org.robolectric.annotation.processing.RobolectricProcessor" ]
   processor_args_javac = [ "org.robolectric.annotation.processing.shadowPackage=org.robolectric.shadows.multidex" ]
   provider_configurations = [ "robolectric/robolectric-shadows/shadows-multidex/src/main/resources/META-INF/services/org.robolectric.internal.ShadowProvider" ]
   java_files = [
     "robolectric/robolectric-shadows/shadows-multidex/src/main/java/org/robolectric/shadows/multidex/ShadowMultiDex.java",
     "robolectric/robolectric-shadows/shadows-multidex/src/main/java/org/robolectric/shadows/multidex/package-info.java",
   ]
 
   deps = [
     ":android-all-5.0.0_r2-robolectric-1_java",
     ":robolectric_annotations_java",
     ":robolectric_processor_java",
     ":robolectric_utils_java",
     "//build/android:sun_tools_java",
     "//third_party/android_tools:android_support_multidex_java",
     "//third_party/guava:guava_java",
   ]
 
   # Work-around for gradle generator not yet supporting annotation processors.
   gradle_treat_as_prebuilt = true
 }