[Extensions Bindings] Add a bindings/ subdirectory under renderer

extensions/renderer/bindings/api_last_error.h

Index: extensions/renderer/bindings/api_last_error.h
diff --git a/extensions/renderer/api_last_error.h b/extensions/renderer/bindings/api_last_error.h
similarity index 90%
rename from extensions/renderer/api_last_error.h
rename to extensions/renderer/bindings/api_last_error.h
index 686adcc9ca789dcd8eedf2b612292ec16e0b160e..f07945878db2ab126c9ce01865991db6c38bc5d4 100644
--- a/extensions/renderer/api_last_error.h
+++ b/extensions/renderer/bindings/api_last_error.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef EXTENSIONS_RENDERER_API_LAST_ERROR_H_
-#define EXTENSIONS_RENDERER_API_LAST_ERROR_H_
+#ifndef EXTENSIONS_RENDERER_BINDINGS_API_LAST_ERROR_H_
+#define EXTENSIONS_RENDERER_BINDINGS_API_LAST_ERROR_H_
 
 #include <string>
 
@@ -50,4 +50,4 @@ class APILastError {
 
 }  // namespace extensions
 
-#endif  // EXTENSIONS_RENDERER_API_LAST_ERROR_H_
+#endif  // EXTENSIONS_RENDERER_BINDINGS_API_LAST_ERROR_H_