Remove even more calls to HandleScope default ctor.

This was inexpclicably missed by r221689.

BUG=236173

Review URL: https://chromiumcodereview.appspot.com/23694026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@222038 0039d316-1c4b-4281-b951-d872f2087c98

chrome/renderer/extensions/chrome_v8_context_set_unittest.cc

@@ -18,9 +18,9 @@ TEST(ChromeV8ContextSet, Lifecycle) {
 
   ChromeV8ContextSet context_set;
 
-  v8::HandleScope handle_scope;
-  v8::Handle<v8::Context> v8_context(
-      v8::Context::New(v8::Isolate::GetCurrent()));
+  v8::Isolate* isolate = v8::Isolate::GetCurrent();
+  v8::HandleScope handle_scope(isolate);
+  v8::Handle<v8::Context> v8_context(v8::Context::New(isolate));
 
   // Dirty hack, but we don't actually need the frame, and this is easier than
   // creating a whole webview.