[Extensions Bindings] Remove Isolate arg from APIBinding::CreateInstance

extensions/renderer/api_binding.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/renderer/api_binding.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 271 matching lines @@
           supports_rules, std::move(rule_actions), std::move(rule_conditions),
           this));
     }
   }
 }
 
 APIBinding::~APIBinding() {}
 
 v8::Local<v8::Object> APIBinding::CreateInstance(
     v8::Local<v8::Context> context,
-    v8::Isolate* isolate,
     const AvailabilityCallback& is_available) {
   DCHECK(IsContextValid(context));
+  v8::Isolate* isolate = context->GetIsolate();
   if (object_template_.IsEmpty())
     InitializeTemplate(isolate);
   DCHECK(!object_template_.IsEmpty());
 
   v8::Local<v8::Object> object =
       object_template_.Get(isolate)->NewInstance(context).ToLocalChecked();
 
   // The object created from the template includes all methods, but some may
   // be unavailable in this context. Iterate over them and delete any that
   // aren't available.
@@ skipping 270 matching lines @@
     arguments->ThrowTypeError("Invalid invocation");
     return;
   }
 
   request_handler_->StartRequest(context, name, std::move(converted_arguments),
                                  callback, custom_callback,
                                  binding::RequestThread::UI);
 }
 
 }  // namespace extensions