Cross-process postMessage

content/browser/browsing_instance_frame_id.cc

Index: content/browser/browsing_instance_frame_id.cc
diff --git a/content/browser/browsing_instance_frame_id.cc b/content/browser/browsing_instance_frame_id.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a4483ad5835fa11d406af748cc404725fb23b1c9
--- /dev/null
+++ b/content/browser/browsing_instance_frame_id.cc
@@ -0,0 +1,42 @@
+// Copyright (c) 2011 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 "browsing_instance_frame_id.h"
+
+namespace content {
+
+BrowsingInstanceFrame::WebKitFrameIdTuple::WebKitFrameIdTuple(int proc_host_id,
+                                                              int64 frame_id)
+  : process_host_id(proc_host_id),
+    frame_id(frame_id) {
+}
+
+bool BrowsingInstanceFrame::WebKitFrameIdTuple::operator==(
+    const WebKitFrameIdTuple& o) const {
+  return o.process_host_id == process_host_id &&
+         o.frame_id == frame_id;
+}
+
+BrowsingInstanceFrame::BrowsingInstanceFrame(int64 id, bool is_top_level)
+  : id_(id),
+    current_webkit_frame_(WebKitFrameIdTuple(-1, -1)),
+    current_route_id_(-1),
+    is_top_level_(is_top_level) {
+}
+
+BrowsingInstanceFrame::~BrowsingInstanceFrame() {
+}
+
+void BrowsingInstanceFrame::UpdateFrame(int new_process_host_id,
+                                          int new_route_id,
+                                          int64 new_frame_id) {
+  WebKitFrameIdTuple newWebKitTuple(new_process_host_id, new_frame_id);
+  current_webkit_frame_ = newWebKitTuple;
+  current_route_id_ = new_route_id;
+
+  all_webkit_frames_.push_back(newWebKitTuple);
+  // TODO(supersat): Clear out subframes?
+}
+
+}  // namespace content