[Extensions Bindings] Add a bindings/ subdirectory under renderer

extensions/renderer/bindings/api_binding_js_util.h

Index: extensions/renderer/bindings/api_binding_js_util.h
diff --git a/extensions/renderer/api_binding_js_util.h b/extensions/renderer/bindings/api_binding_js_util.h
similarity index 93%
rename from extensions/renderer/api_binding_js_util.h
rename to extensions/renderer/bindings/api_binding_js_util.h
index 9963c82245e71a3b6427be703f2c4b1492b77744..78675d301e731ccb0fa235306234846c1c58695c 100644
--- a/extensions/renderer/api_binding_js_util.h
+++ b/extensions/renderer/bindings/api_binding_js_util.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef EXTENSIONS_RENDERER_API_BINDING_JS_UTIL_H_
-#define EXTENSIONS_RENDERER_API_BINDING_JS_UTIL_H_
+#ifndef EXTENSIONS_RENDERER_BINDINGS_API_BINDING_JS_UTIL_H_
+#define EXTENSIONS_RENDERER_BINDINGS_API_BINDING_JS_UTIL_H_
 
 #include <string>
 
 #include "base/macros.h"
-#include "extensions/renderer/api_binding_types.h"
+#include "extensions/renderer/bindings/api_binding_types.h"
 #include "gin/wrappable.h"
 #include "v8/include/v8.h"
 
@@ -105,4 +105,4 @@ class APIBindingJSUtil final : public gin::Wrappable<APIBindingJSUtil> {
 
 }  // namespace extensions
 
-#endif  // EXTENSIONS_RENDERER_API_BINDING_JS_UTIL_H_
+#endif  // EXTENSIONS_RENDERER_BINDINGS_API_BINDING_JS_UTIL_H_