Support frame tree propagation between renderers in the same browsing instance.

content/common/string_constants.h

Index: content/common/string_constants.h
diff --git a/content/common/string_constants.h b/content/common/string_constants.h
new file mode 100644
index 0000000000000000000000000000000000000000..7b59a67db13833f5dd485055d34b609f22acf77e
--- /dev/null
+++ b/content/common/string_constants.h
@@ -0,0 +1,16 @@
+// 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.
+
+#ifndef CONTENT_COMMON_STRING_CONSTANTS_H_

[awong, 2012/08/21 19:27:28]

string_constants is too generic.  We should name it something like FrameTree
constants, or render view constants, or something indicates the types of
constants that should be in here.

[nasko, 2012/08/21 22:24:13]

Done.

+#define CONTENT_COMMON_STRING_CONSTANTS_H_
+
+namespace content {
+
+extern const char kFrameTreeNodeNameKey[];

[awong, 2012/08/21 19:27:28]

Add comment referring to location that describes why these constants exist
(probably the comment block in the ipc message)

[nasko, 2012/08/21 22:24:13]

Done.

+extern const char kFrameTreeNodeIdKey[];
+extern const char kFrameTreeNodeSubtreeKey[];
+
+} // namespace content
+
+#endif  // CONTENT_COMMON_STRING_CONSTANTS_H_