Isolate gin_unittests and add them to bots

gin/gin.gyp

Index: gin/gin.gyp
diff --git a/gin/gin.gyp b/gin/gin.gyp
index a3e4d39c1c8d5fba4b152b043b44d9457c00d3c9..1b5a544b018a110dc9f83257beb4d7e7ee53f198 100644
--- a/gin/gin.gyp
+++ b/gin/gin.gyp
@@ -156,6 +156,7 @@
       'dependencies': [
         '../base/base.gyp:test_support_base',
         '../v8/tools/gyp/v8.gyp:v8',
+        'gin_shell',
         'gin_test',
       ],
       'sources': [
@@ -173,4 +174,23 @@
       ],
     },
   ],
+  'conditions': [
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'gin_unittests_run',
+          'type': 'none',
+          'dependencies': [
+            'gin_unittests',
+          ],
+          'includes': [
+            '../build/isolate.gypi',
+          ],
+          'sources': [
+            'gin_unittests.isolate',
+          ],
+        },
+      ],
+    }],
+  ],
 }