first step to remove unsafe handles

samples/process.cc

Index: samples/process.cc
diff --git a/samples/process.cc b/samples/process.cc
index 4dcc09a56b775c101ade9fced34b176e4b4eb7b1..75d6582e82b8c69aecb8a707ee40f6b75ccf18bb 100644
--- a/samples/process.cc
+++ b/samples/process.cc
@@ -25,6 +25,11 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// TODO(dcarney): remove this
+#define V8_ALLOW_ACCESS_TO_RAW_HANDLE_CONSTRUCTOR
+#define V8_ALLOW_ACCESS_TO_PERSISTENT_IMPLICIT
+#define V8_ALLOW_ACCESS_TO_PERSISTENT_ARROW
+
 #include <v8.h>
 
 #include <string>
@@ -167,7 +172,7 @@ bool JsHttpRequestProcessor::Initialize(map<string, string>* opts,
 
   // Enter the new context so all the following operations take place
   // within it.
-  Context::Scope context_scope(context_);
+  Context::Scope context_scope(GetIsolate(), context_);
 
   // Make the options mapping available within the context
   if (!InstallMaps(opts, output))
@@ -250,7 +255,7 @@ bool JsHttpRequestProcessor::Process(HttpRequest* request) {
 
   // Enter this processor's context so all the remaining operations
   // take place there
-  Context::Scope context_scope(context_);
+  Context::Scope context_scope(GetIsolate(), context_);
 
   // Wrap the C++ request object in a JavaScript wrapper
   Handle<Object> request_obj = WrapRequest(request);
@@ -303,7 +308,8 @@ Handle<Object> JsHttpRequestProcessor::WrapMap(map<string, string>* obj) {
     Handle<ObjectTemplate> raw_template = MakeMapTemplate(GetIsolate());
     map_template_ = Persistent<ObjectTemplate>::New(GetIsolate(), raw_template);
   }
-  Handle<ObjectTemplate> templ = map_template_;
+  Handle<ObjectTemplate> templ =
+      Local<ObjectTemplate>::New(GetIsolate(), map_template_);
 
   // Create an empty map wrapper.
   Handle<Object> result = templ->NewInstance();
@@ -410,7 +416,8 @@ Handle<Object> JsHttpRequestProcessor::WrapRequest(HttpRequest* request) {
     request_template_ =
         Persistent<ObjectTemplate>::New(GetIsolate(), raw_template);
   }
-  Handle<ObjectTemplate> templ = request_template_;
+  Handle<ObjectTemplate> templ =
+      Local<ObjectTemplate>::New(GetIsolate(), request_template_);
 
   // Create an empty http request wrapper.
   Handle<Object> result = templ->NewInstance();