diff --git a/atom/renderer/api/atom_api_renderer_ipc.cc b/atom/renderer/api/atom_api_renderer_ipc.cc
index 6db9c8e51732..7ec2ac6b4878 100644
--- a/atom/renderer/api/atom_api_renderer_ipc.cc
+++ b/atom/renderer/api/atom_api_renderer_ipc.cc
@@ -2,22 +2,23 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#include "atom/renderer/api/atom_api_renderer_ipc.h"
+#include <string>
+
 #include "atom/common/api/api_messages.h"
 #include "atom/common/native_mate_converters/string16_converter.h"
 #include "atom/common/native_mate_converters/value_converter.h"
 #include "atom/common/node_bindings.h"
 #include "atom/common/node_includes.h"
+#include "base/values.h"
 #include "content/public/renderer/render_frame.h"
+#include "native_mate/arguments.h"
 #include "native_mate/dictionary.h"
 #include "third_party/blink/public/web/web_local_frame.h"
 
 using blink::WebLocalFrame;
 using content::RenderFrame;
 
-namespace atom {
-
-namespace api {
+namespace {
 
 RenderFrame* GetCurrentRenderFrame() {
   WebLocalFrame* frame = WebLocalFrame::FrameForCurrentContext();
@@ -78,20 +79,14 @@ void SendTo(mate::Arguments* args,
     args->ThrowError("Unable to send AtomFrameHostMsg_Message_To");
 }
 
-}  // namespace api
-
-}  // namespace atom
-
-namespace {
-
 void Initialize(v8::Local<v8::Object> exports,
                 v8::Local<v8::Value> unused,
                 v8::Local<v8::Context> context,
                 void* priv) {
   mate::Dictionary dict(context->GetIsolate(), exports);
-  dict.SetMethod("send", &atom::api::Send);
-  dict.SetMethod("sendSync", &atom::api::SendSync);
-  dict.SetMethod("sendTo", &atom::api::SendTo);
+  dict.SetMethod("send", &Send);
+  dict.SetMethod("sendSync", &SendSync);
+  dict.SetMethod("sendTo", &SendTo);
 }
 
 }  // namespace
diff --git a/atom/renderer/api/atom_api_renderer_ipc.h b/atom/renderer/api/atom_api_renderer_ipc.h
deleted file mode 100644
index ab243da52234..000000000000
--- a/atom/renderer/api/atom_api_renderer_ipc.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2016 GitHub, Inc.
-// Use of this source code is governed by the MIT license that can be
-// found in the LICENSE file.
-
-#ifndef ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_
-#define ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_
-
-#include <string>
-
-#include "base/values.h"
-#include "native_mate/arguments.h"
-
-namespace atom {
-
-namespace api {
-
-void Send(mate::Arguments* args,
-          const std::string& channel,
-          const base::ListValue& arguments);
-
-base::ListValue SendSync(mate::Arguments* args,
-                         const std::string& channel,
-                         const base::ListValue& arguments);
-
-void SendTo(mate::Arguments* args,
-            bool internal,
-            bool send_to_all,
-            int32_t web_contents_id,
-            const std::string& channel,
-            const base::ListValue& arguments);
-
-}  // namespace api
-
-}  // namespace atom
-
-#endif  // ATOM_RENDERER_API_ATOM_API_RENDERER_IPC_H_
diff --git a/atom/renderer/atom_sandboxed_renderer_client.cc b/atom/renderer/atom_sandboxed_renderer_client.cc
index 2744e9aadf26..96ebadfb7a6c 100644
--- a/atom/renderer/atom_sandboxed_renderer_client.cc
+++ b/atom/renderer/atom_sandboxed_renderer_client.cc
@@ -11,7 +11,6 @@
 #include "atom/common/native_mate_converters/value_converter.h"
 #include "atom/common/node_bindings.h"
 #include "atom/common/options_switches.h"
-#include "atom/renderer/api/atom_api_renderer_ipc.h"
 #include "atom/renderer/atom_render_frame_observer.h"
 #include "base/base_paths.h"
 #include "base/command_line.h"
diff --git a/filenames.gni b/filenames.gni
index 921415a984a5..255ecc2c0703 100644
--- a/filenames.gni
+++ b/filenames.gni
@@ -630,7 +630,6 @@ filenames = {
     "atom/common/platform_util_win.cc",
     "atom/common/promise_util.h",
     "atom/common/promise_util.cc",
-    "atom/renderer/api/atom_api_renderer_ipc.h",
     "atom/renderer/api/atom_api_renderer_ipc.cc",
     "atom/renderer/api/atom_api_spell_check_client.cc",
     "atom/renderer/api/atom_api_spell_check_client.h",