Use V8 Maybe APIs in extensions/renderer

extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc

Index: extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
diff --git a/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc b/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
index 5a240f816a61d4918b74a06ce2caef81ee6d2b2b..a474311f8fbe6d900a37bb4043de42d9ddb79576 100644
--- a/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
+++ b/extensions/renderer/guest_view/guest_view_internal_custom_bindings.cc
@@ -108,7 +108,7 @@ void GuestViewInternalCustomBindings::AttachGuest(
   // Optional Callback Function.
   CHECK(args.Length() < 4 || args[3]->IsFunction());
 
-  int element_instance_id = args[0]->Int32Value();
+  int element_instance_id = args[0].As<v8::Int32>()->Value();
   // An element instance ID uniquely identifies a GuestViewContainer.
   auto guest_view_container =
       guest_view::GuestViewContainer::FromID(element_instance_id);
@@ -118,7 +118,7 @@ void GuestViewInternalCustomBindings::AttachGuest(
   if (!guest_view_container)
     return;
 
-  int guest_instance_id = args[1]->Int32Value();
+  int guest_instance_id = args[1].As<v8::Int32>()->Value();
 
   scoped_ptr<base::DictionaryValue> params;
   {
@@ -154,7 +154,7 @@ void GuestViewInternalCustomBindings::DetachGuest(
   // Optional Callback Function.
   CHECK(args.Length() < 2 || args[1]->IsFunction());
 
-  int element_instance_id = args[0]->Int32Value();
+  int element_instance_id = args[0].As<v8::Int32>()->Value();
   // An element instance ID uniquely identifies a GuestViewContainer.
   auto guest_view_container =
       guest_view::GuestViewContainer::FromID(element_instance_id);
@@ -186,7 +186,7 @@ void GuestViewInternalCustomBindings::GetContentWindow(
   if (!args[0]->IsInt32())
     return;
 
-  int view_id = args[0]->Int32Value();
+  int view_id = args[0].As<v8::Int32>()->Value();
   if (view_id == MSG_ROUTING_NONE)
     return;
 
@@ -207,7 +207,7 @@ void GuestViewInternalCustomBindings::GetViewFromID(
   CHECK(args.Length() == 1);
   // The view ID.
   CHECK(args[0]->IsInt32());
-  int view_id = args[0]->Int32Value();
+  int view_id = args[0].As<v8::Int32>()->Value();
 
   ViewMap& view_map = weak_view_map.Get();
   auto map_entry = view_map.find(view_id);
@@ -228,7 +228,7 @@ void GuestViewInternalCustomBindings::RegisterDestructionCallback(
   // Callback function.
   CHECK(args[1]->IsFunction());
 
-  int element_instance_id = args[0]->Int32Value();
+  int element_instance_id = args[0].As<v8::Int32>()->Value();
   // An element instance ID uniquely identifies a ExtensionsGuestViewContainer
   // within a RenderView.
   auto guest_view_container = static_cast<ExtensionsGuestViewContainer*>(
@@ -251,7 +251,7 @@ void GuestViewInternalCustomBindings::RegisterElementResizeCallback(
   // Callback function.
   CHECK(args[1]->IsFunction());
 
-  int element_instance_id = args[0]->Int32Value();
+  int element_instance_id = args[0].As<v8::Int32>()->Value();
   // An element instance ID uniquely identifies a ExtensionsGuestViewContainer
   // within a RenderView.
   auto guest_view_container = static_cast<ExtensionsGuestViewContainer*>(
@@ -277,7 +277,7 @@ void GuestViewInternalCustomBindings::RegisterView(
   // A reference to the view object is stored in |weak_view_map| using its view
   // ID as the key. The reference is made weak so that it will not extend the
   // lifetime of the object.
-  int view_id = args[0]->Int32Value();
+  int view_id = args[0].As<v8::Int32>()->Value();
   auto object =
       new v8::Global<v8::Object>(args.GetIsolate(), args[1].As<v8::Object>());
   weak_view_map.Get().insert(std::make_pair(view_id, object));