diff --git a/atom/browser/api/atom_api_content_tracing.cc b/atom/browser/api/atom_api_content_tracing.cc
index 64159b1b99c5..3242305507e6 100644
--- a/atom/browser/api/atom_api_content_tracing.cc
+++ b/atom/browser/api/atom_api_content_tracing.cc
@@ -65,11 +65,6 @@ scoped_refptr<TracingController::TraceDataEndpoint> GetTraceDataEndpoint(
       result_file_path, base::Bind(callback, result_file_path));
 }
 
-void OnRecordingStopped(const atom::util::CopyablePromise& promise,
-                        const base::FilePath& path) {
-  promise.GetPromise().Resolve(path);
-}
-
 v8::Local<v8::Promise> StopRecording(v8::Isolate* isolate,
                                      const base::FilePath& path) {
   atom::util::Promise promise(isolate);
@@ -78,28 +73,22 @@ v8::Local<v8::Promise> StopRecording(v8::Isolate* isolate,
   // TODO(zcbenz): Remove the use of CopyablePromise when the
   // CreateFileEndpoint API accepts OnceCallback.
   TracingController::GetInstance()->StopTracing(GetTraceDataEndpoint(
-      path,
-      base::Bind(&OnRecordingStopped, atom::util::CopyablePromise(promise))));
+      path, base::Bind(atom::util::CopyablePromise::ResolveCopyablePromise<
+                           const base::FilePath&>,
+                       atom::util::CopyablePromise(promise))));
   return handle;
 }
 
-void OnCategoriesAvailable(atom::util::Promise promise,
-                           const std::set<std::string>& categories) {
-  promise.Resolve(categories);
-}
-
 v8::Local<v8::Promise> GetCategories(v8::Isolate* isolate) {
   atom::util::Promise promise(isolate);
   v8::Local<v8::Promise> handle = promise.GetHandle();
 
   // Note: This method always succeeds.
-  TracingController::GetInstance()->GetCategories(
-      base::BindOnce(&OnCategoriesAvailable, std::move(promise)));
-  return handle;
-}
+  TracingController::GetInstance()->GetCategories(base::BindOnce(
+      atom::util::Promise::ResolvePromise<const std::set<std::string>&>,
+      std::move(promise)));
 
-void OnTracingStarted(atom::util::Promise promise) {
-  promise.Resolve();
+  return handle;
 }
 
 v8::Local<v8::Promise> StartTracing(
@@ -110,7 +99,8 @@ v8::Local<v8::Promise> StartTracing(
 
   // Note: This method always succeeds.
   TracingController::GetInstance()->StartTracing(
-      trace_config, base::BindOnce(&OnTracingStarted, std::move(promise)));
+      trace_config, base::BindOnce(atom::util::Promise::ResolveEmptyPromise,
+                                   std::move(promise)));
   return handle;
 }
 
diff --git a/atom/browser/api/atom_api_cookies.cc b/atom/browser/api/atom_api_cookies.cc
index 366db5a86e6f..2be84fd1cc85 100644
--- a/atom/browser/api/atom_api_cookies.cc
+++ b/atom/browser/api/atom_api_cookies.cc
@@ -149,7 +149,7 @@ void FilterCookies(std::unique_ptr<base::DictionaryValue> filter,
 
   base::PostTaskWithTraits(
       FROM_HERE, {BrowserThread::UI},
-      base::BindOnce(util::Promise::ResolvePromise<net::CookieList>,
+      base::BindOnce(util::Promise::ResolvePromise<const net::CookieList&>,
                      std::move(promise), std::move(result)));
 }
 
diff --git a/atom/browser/api/atom_api_net_log.cc b/atom/browser/api/atom_api_net_log.cc
index 6eb1b704b8d7..3c1aea105145 100644
--- a/atom/browser/api/atom_api_net_log.cc
+++ b/atom/browser/api/atom_api_net_log.cc
@@ -19,15 +19,6 @@
 #include "native_mate/handle.h"
 #include "net/url_request/url_request_context_getter.h"
 
-namespace {
-
-void OnGetFilePathToCompletedLog(const atom::util::CopyablePromise& promise,
-                                 const base::FilePath& file_path) {
-  promise.GetPromise().Resolve(file_path);
-}
-
-}  // namespace
-
 namespace atom {
 
 namespace api {
@@ -120,7 +111,8 @@ void NetLog::OnNewState(const base::DictionaryValue& state) {
       // TODO(zcbenz): Remove the use of CopyablePromise when the
       // GetFilePathToCompletedLog API accepts OnceCallback.
       net_log_writer_->GetFilePathToCompletedLog(base::Bind(
-          &OnGetFilePathToCompletedLog, util::CopyablePromise(promise)));
+          util::CopyablePromise::ResolveCopyablePromise<const base::FilePath&>,
+          util::CopyablePromise(promise)));
     }
     stop_callback_queue_.clear();
   }
diff --git a/atom/browser/api/atom_api_protocol.cc b/atom/browser/api/atom_api_protocol.cc
index ce1f97584869..25206d3d8f63 100644
--- a/atom/browser/api/atom_api_protocol.cc
+++ b/atom/browser/api/atom_api_protocol.cc
@@ -177,10 +177,6 @@ bool IsProtocolHandledInIO(
   return is_handled;
 }
 
-void PromiseCallback(util::Promise promise, bool handled) {
-  promise.Resolve(handled);
-}
-
 v8::Local<v8::Promise> Protocol::IsProtocolHandled(const std::string& scheme) {
   util::Promise promise(isolate());
   v8::Local<v8::Promise> handle = promise.GetHandle();
@@ -190,7 +186,7 @@ v8::Local<v8::Promise> Protocol::IsProtocolHandled(const std::string& scheme) {
   base::PostTaskWithTraitsAndReplyWithResult(
       FROM_HERE, {content::BrowserThread::IO},
       base::BindOnce(&IsProtocolHandledInIO, base::RetainedRef(getter), scheme),
-      base::BindOnce(&PromiseCallback, std::move(promise)));
+      base::BindOnce(util::Promise::ResolvePromise<bool>, std::move(promise)));
 
   return handle;
 }
diff --git a/atom/browser/api/atom_api_system_preferences_mac.mm b/atom/browser/api/atom_api_system_preferences_mac.mm
index 2a7fc29ffaee..18930f8343e0 100644
--- a/atom/browser/api/atom_api_system_preferences_mac.mm
+++ b/atom/browser/api/atom_api_system_preferences_mac.mm
@@ -451,14 +451,6 @@ bool SystemPreferences::CanPromptTouchID() {
   return false;
 }
 
-void OnTouchIDCompleted(util::Promise promise) {
-  promise.Resolve();
-}
-
-void OnTouchIDFailed(util::Promise promise, const std::string& reason) {
-  promise.RejectWithErrorMessage(reason);
-}
-
 v8::Local<v8::Promise> SystemPreferences::PromptTouchID(
     v8::Isolate* isolate,
     const std::string& reason) {
@@ -486,16 +478,19 @@ v8::Local<v8::Promise> SystemPreferences::PromptTouchID(
               localizedReason:[NSString stringWithUTF8String:reason.c_str()]
                         reply:^(BOOL success, NSError* error) {
                           if (!success) {
+                            std::string err_msg = std::string(
+                                [error.localizedDescription UTF8String]);
+                            runner->PostTask(
+                                FROM_HERE,
+                                base::BindOnce(util::Promise::RejectPromise,
+                                               std::move(p),
+                                               std::move(err_msg)));
+                          } else {
                             runner->PostTask(
                                 FROM_HERE,
                                 base::BindOnce(
-                                    &OnTouchIDFailed, std::move(p),
-                                    std::string([error.localizedDescription
-                                                     UTF8String])));
-                          } else {
-                            runner->PostTask(FROM_HERE,
-                                             base::BindOnce(&OnTouchIDCompleted,
-                                                            std::move(p)));
+                                    util::Promise::ResolveEmptyPromise,
+                                    std::move(p)));
                           }
                         }];
   } else {
diff --git a/atom/browser/api/atom_api_web_contents.cc b/atom/browser/api/atom_api_web_contents.cc
index c50bf589385f..e5f6b948d273 100644
--- a/atom/browser/api/atom_api_web_contents.cc
+++ b/atom/browser/api/atom_api_web_contents.cc
@@ -1300,11 +1300,12 @@ v8::Local<v8::Promise> WebContents::SavePage(
     const base::FilePath& full_file_path,
     const content::SavePageType& save_type) {
   util::Promise promise(isolate());
-  v8::Local<v8::Promise> ret = promise.GetHandle();
+  v8::Local<v8::Promise> handle = promise.GetHandle();
 
   auto* handler = new SavePageHandler(web_contents(), std::move(promise));
   handler->Handle(full_file_path, save_type);
-  return ret;
+
+  return handle;
 }
 
 void WebContents::OpenDevTools(mate::Arguments* args) {