1 files changed, 70 insertions, 0 deletions
diff --git a/chrome/renderer/extensions/custom_bindings_util.cc b/chrome/renderer/extensions/custom_bindings_util.cc
new file mode 100644
index 0000000..c17740f
--- /dev/null
+++ b/chrome/renderer/extensions/custom_bindings_util.cc
@@ -0,0 +1,70 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/renderer/extensions/custom_bindings_util.h"
+
+#include <map>
+
+#include "base/string_util.h"
+#include "chrome/common/extensions/extension.h"
+#include "chrome/renderer/extensions/chrome_v8_extension.h"
+#include "chrome/renderer/extensions/contextMenus_custom_bindings.h"
+#include "base/logging.h"
+#include "grit/renderer_resources.h"
+#include "v8/include/v8.h"
+
+namespace extensions {
+
+namespace custom_bindings_util {
+
+std::vector<v8::Extension*> GetAll() {
+  static const char* kDependencies[] = {
+    "extensions/schema_generated_bindings.js",
+  };
+  static const size_t kDependencyCount = arraysize(kDependencies);
+
+  std::vector<v8::Extension*> result;
+
+  result.push_back(
+      new ContextMenusCustomBindings(kDependencyCount, kDependencies));
+
+  return result;
+}
+
+// Extracts the name of an API from the name of the V8 extension which contains
+// custom bindings for it (see kCustomBindingNames).
+std::string GetAPIName(const std::string& v8_extension_name) {
+  // Extract the name of the API from the v8 extension name.
+  // This is "${api_name}" in "extensions/${api_name}_custom_bindings.js".
+  std::string prefix = "extensions/";
+  const bool kCaseSensitive = true;
+  if (!StartsWithASCII(v8_extension_name, prefix, kCaseSensitive))
+    return "";
+
+  std::string suffix = "_custom_bindings.js";
+  if (!EndsWith(v8_extension_name, suffix, kCaseSensitive))
+    return "";
+
+  return v8_extension_name.substr(
+      prefix.size(),
+      v8_extension_name.size() - prefix.size() - suffix.size());
+}
+
+bool AllowAPIInjection(const std::string& api_name,
+                       const Extension& extension) {
+  CHECK(api_name != "");
+
+  // As in ExtensionAPI::GetSchemasForExtension, we need to allow any bindings
+  // for an API that the extension *might* have permission to use.
+  if (!extension.required_permission_set()->HasAnyAccessToAPI(api_name) &&
+      !extension.optional_permission_set()->HasAnyAccessToAPI(api_name)) {
+    return false;
+  }
+
+  return true;
+}
+
+}  // namespace custom_bindings_util
+
+}  // namespace extensions