[Extensions Bindings] Add a bindings/ subdirectory under renderer

extensions/renderer/bindings/api_binding_hooks.h

Index: extensions/renderer/bindings/api_binding_hooks.h
diff --git a/extensions/renderer/api_binding_hooks.h b/extensions/renderer/bindings/api_binding_hooks.h
similarity index 94%
rename from extensions/renderer/api_binding_hooks.h
rename to extensions/renderer/bindings/api_binding_hooks.h
index 82f85108fa4e7213c5fc0e28750078d61305618a..f29ccb5d554e8b208fe4347b1d8804aaaede8dac 100644
--- a/extensions/renderer/api_binding_hooks.h
+++ b/extensions/renderer/bindings/api_binding_hooks.h
@@ -2,14 +2,14 @@
 // 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_HOOKS_H_
-#define EXTENSIONS_RENDERER_API_BINDING_HOOKS_H_
+#ifndef EXTENSIONS_RENDERER_BINDINGS_API_BINDING_HOOKS_H_
+#define EXTENSIONS_RENDERER_BINDINGS_API_BINDING_HOOKS_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "extensions/renderer/api_binding_types.h"
+#include "extensions/renderer/bindings/api_binding_types.h"
 #include "v8/include/v8.h"
 
 namespace extensions {
@@ -102,4 +102,4 @@ class APIBindingHooks {
 
 }  // namespace extensions
 
-#endif  // EXTENSIONS_RENDERER_API_BINDING_HOOKS_H_
+#endif  // EXTENSIONS_RENDERER_BINDINGS_API_BINDING_HOOKS_H_