[Extensions Bindings] Add a bindings/ subdirectory under renderer

extensions/renderer/bindings/api_invocation_errors.h

Index: extensions/renderer/bindings/api_invocation_errors.h
diff --git a/extensions/renderer/api_invocation_errors.h b/extensions/renderer/bindings/api_invocation_errors.h
similarity index 93%
rename from extensions/renderer/api_invocation_errors.h
rename to extensions/renderer/bindings/api_invocation_errors.h
index 254c151a37ba856129c9fec6571eb8af6289482a..498866fce83990915efe77b69754b65589909139 100644
--- a/extensions/renderer/api_invocation_errors.h
+++ b/extensions/renderer/bindings/api_invocation_errors.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_INVOCATION_ERRORS_H_
-#define EXTENSIONS_RENDERER_API_INVOCATION_ERRORS_H_
+#ifndef EXTENSIONS_RENDERER_BINDINGS_API_INVOCATION_ERRORS_H_
+#define EXTENSIONS_RENDERER_BINDINGS_API_INVOCATION_ERRORS_H_
 
 #include <set>
 #include <string>
@@ -69,4 +69,4 @@ std::string InvocationError(const std::string& method_name,
 }  // namespace api_errors
 }  // namespace extensions
 
-#endif  // EXTENSIONS_RENDERER_API_INVOCATION_ERRORS_H_
+#endif  // EXTENSIONS_RENDERER_BINDINGS_API_INVOCATION_ERRORS_H_