Prototype extension process. This is a proof of concept, with a lot of

rough edges.  Mostly this just fires up a renderer with an "extension" object
exposed, which right now only has a single method "getTestString".

I also did some misc cleanup along the way.
Review URL: http://codereview.chromium.org/27187

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@10620 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 42 insertions, 0 deletions

diff --git a/chrome/common/bindings_policy.h b/chrome/common/bindings_policy.h
new file mode 100755
index 0000000..eccce17
--- /dev/null
+++ b/chrome/common/bindings_policy.h
@@ -0,0 +1,42 @@
+// Copyright (c) 2006-2009 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.
+
+#ifndef CHROME_COMMON_BINDINGS_POLICY_H__
+#define CHROME_COMMON_BINDINGS_POLICY_H__
+
+// This is a utility class that specifies flag values for the types of
+// JavaScript bindings exposed to renderers.
+class BindingsPolicy {
+ public:
+  enum {
+    // HTML-based UI bindings that allows he js content to send JSON-encoded
+    // data back to the browser process.
+    DOM_UI = 1 << 0,
+    // DOM automation bindings that allows the js content to send JSON-encoded
+    // data back to automation in the parent process.  (By default this isn't
+    // allowed unless the app has been started up with the --dom-automation
+    // switch.)
+    DOM_AUTOMATION = 1 << 1,
+    // Bindings that allow access to the external host (through automation).
+    EXTERNAL_HOST = 1 << 2,
+    // Special bindings with privileged APIs for code running in the extension
+    // process.
+    EXTENSION = 1 << 3,
+  };
+
+  static bool is_dom_ui_enabled(int flags) {
+    return (flags & DOM_UI) != 0;
+  }
+  static bool is_dom_automation_enabled(int flags) {
+    return (flags & DOM_AUTOMATION) != 0;
+  }
+  static bool is_external_host_enabled(int flags) {
+    return (flags & EXTERNAL_HOST) != 0;
+  }
+  static bool is_extension_enabled(int flags) {
+    return (flags & EXTENSION) != 0;
+  }
+};
+
+#endif  // CHROME_COMMON_BINDINGS_POLICY_H__