Add support for references in different paths in apis

tools/json_schema_compiler/cpp_namespace_environment.py

Index: tools/json_schema_compiler/cpp_namespace_environment.py
diff --git a/components/enhanced_bookmarks/proto/BUILD.gn b/tools/json_schema_compiler/cpp_namespace_environment.py
similarity index 56%
copy from components/enhanced_bookmarks/proto/BUILD.gn
copy to tools/json_schema_compiler/cpp_namespace_environment.py
index ddea52b709202ca815497173e84b2760e72bfbad..20e77bb6893c99f338342267f2a3ae465bb541ec 100644
--- a/components/enhanced_bookmarks/proto/BUILD.gn
+++ b/tools/json_schema_compiler/cpp_namespace_environment.py
@@ -2,10 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//third_party/protobuf/proto_library.gni")
-
-proto_library("proto") {
-  sources = [
-    "metadata.proto",
-  ]
-}
+class CppNamespaceEnvironment(object):
+  def __init__(self, namespace_pattern):
+    self.namespace_pattern = namespace_pattern