Update from chromium https://crrev.com/301725/

gin/v8.isolate

Index: gin/v8.isolate
diff --git a/third_party/jstemplate/compiled_resources.gyp b/gin/v8.isolate
similarity index 50%
copy from third_party/jstemplate/compiled_resources.gyp
copy to gin/v8.isolate
index 7ad83736da435194ad593a00e234944fc3b65669..14d8a2cf733295c2dde8e85f4e15ee80cfc5a34d 100644
--- a/third_party/jstemplate/compiled_resources.gyp
+++ b/gin/v8.isolate
@@ -2,16 +2,14 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
-  'targets': [
-    {
-      'target_name': 'jstemplate',
+  'conditions': [
+    ['v8_use_external_startup_data==1', {
       'variables': {
-        'depends': [
-          'util.js',
-          'jsevalcontext.js',
+        'isolate_dependency_tracked': [
+          '<(PRODUCT_DIR)/natives_blob.bin',
+          '<(PRODUCT_DIR)/snapshot_blob.bin',
         ],
       },
-      'includes': ['../../third_party/closure_compiler/compile_js.gypi'],
-    }
+    }],
   ],
 }