Unit tests for importing prefs from the Java side implemented

components/components_tests.gyp

Index: components/components_tests.gyp
diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index 4eb1410a584995f1ce0dedfc4cad1cfed080d6a9..8e56b38aeb3de316f7911f71f5d6268675234f8d 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -1294,6 +1294,8 @@
             'data_usage/android/traffic_stats_amortizer_unittest.cc',
             'invalidation/impl/invalidation_logger_unittest.cc',
             'invalidation/impl/invalidation_service_android_unittest.cc',
+            'variations/android/variations_seed_bridge_test.cc',
+            'variations/android/variations_seed_bridge_test.h',
           ],
           'sources!': [
             'gcm_driver/gcm_account_mapper_unittest.cc',
@@ -1315,6 +1317,7 @@
             'components.gyp:data_usage_android',
             'components.gyp:safe_json_java',
             'components.gyp:variations_java',
+            ':variations_jni_test_headers',
             '../content/content.gyp:content_java',
             '../testing/android/native_test.gyp:native_test_native_code',
           ],
@@ -1609,7 +1612,18 @@
             ],
           },
           'includes': [ '../build/host_jar.gypi' ],
-         },
+        },
+        {
+          'target_name': 'variations_jni_test_headers',
+          'type': 'none',
+          'sources': [
+            'variations/android/java/src/org/chromium/components/variations/firstrun/VariationsSeedBridgeTest.java',
+          ],
+          'variables': {
+            'jni_gen_package': 'variations',
+          },
+          'includes': [ '../build/jni_generator.gypi' ],
+        },
       ],
       'conditions': [
         ['test_isolation_mode != "noop"',