Revert "deprecate Context::New which returns Persistent"

test/cctest/test-profile-generator.cc

Index: test/cctest/test-profile-generator.cc
diff --git a/test/cctest/test-profile-generator.cc b/test/cctest/test-profile-generator.cc
index 70b34e3d7c276688c27a49755d1081899f5ec499..a18422a748a160a3a56b2885b434aafa3f2800f6 100644
--- a/test/cctest/test-profile-generator.cc
+++ b/test/cctest/test-profile-generator.cc
@@ -855,6 +855,7 @@ v8::Handle<v8::Value> ProfilerExtension::StopProfiling(
 
 static ProfilerExtension kProfilerExtension;
 v8::DeclareExtension kProfilerExtensionDeclaration(&kProfilerExtension);
+static v8::Persistent<v8::Context> env;
 
 static const ProfileNode* PickChild(const ProfileNode* parent,
                                     const char* name) {
@@ -871,12 +872,14 @@ TEST(RecordStackTraceAtStartProfiling) {
   // don't appear in the stack trace.
   i::FLAG_use_inlining = false;
 
-  v8::Isolate* isolate = v8::Isolate::GetCurrent();
-  v8::HandleScope scope(isolate);
-  const char* extensions[] = { "v8/profiler" };
-  v8::ExtensionConfiguration config(1, extensions);
-  v8::Local<v8::Context> context = v8::Context::New(isolate);
-  context->Enter();
+  if (env.IsEmpty()) {
+    v8::HandleScope scope(v8::Isolate::GetCurrent());
+    const char* extensions[] = { "v8/profiler" };
+    v8::ExtensionConfiguration config(1, extensions);
+    env = v8::Context::New(&config);
+  }
+  v8::HandleScope scope(v8::Isolate::GetCurrent());
+  (*env)->Enter();
 
   CpuProfiler* profiler = i::Isolate::Current()->cpu_profiler();
   CHECK_EQ(0, profiler->GetProfilesCount());