Swarm components_unittests.

components/components_tests.gyp

Index: components/components_tests.gyp
diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index 21149c5e674070c3493adc65e3881c7713c87a26..77cfc0b6871edc7cd30c458a933215c5fd0afa2e 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -866,12 +866,12 @@
               ],
             }],
             ['OS=="linux" and component=="shared_library" and use_allocator!="none"', {
-            'dependencies': [
+              'dependencies': [
                 '<(DEPTH)/base/allocator/allocator.gyp:allocator',
-            ],
-            'link_settings': {
+              ],
+              'link_settings': {
                 'ldflags': ['-rdynamic'],
-            },
+              },
             }],
             ['configuration_policy==1', {
               'dependencies': [
@@ -1132,5 +1132,22 @@
         },
       ],
     }],
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'components_unittests_run',
+          'type': 'none',
+          'dependencies': [
+            'components_unittests',
+          ],
+          'includes': [
+            '../build/isolate.gypi',
+          ],
+          'sources': [
+            'components_unittests.isolate',
+          ],
+        },
+      ],
+    }],
   ],
 }