Move guest view container message routing out of content/.

extensions/renderer/guest_view/extensions_guest_view_container_observer.cc

Index: extensions/renderer/guest_view/extensions_guest_view_container_observer.cc
diff --git a/extensions/renderer/guest_view/extensions_guest_view_container_observer.cc b/extensions/renderer/guest_view/extensions_guest_view_container_observer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c82e3de73d34c8d0f697fde2cdd42b217b514bc3
--- /dev/null
+++ b/extensions/renderer/guest_view/extensions_guest_view_container_observer.cc
@@ -0,0 +1,24 @@
+// Copyright 2015 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 "extensions/renderer/guest_view/extensions_guest_view_container_observer.h"
+
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_message_macros.h"
+
+namespace extensions {
+
+ExtensionsGuestViewContainerObserver::ExtensionsGuestViewContainerObserver() {
+}
+
+ExtensionsGuestViewContainerObserver::~ExtensionsGuestViewContainerObserver() {
+}
+
+bool ExtensionsGuestViewContainerObserver::HandlesMessage(
+    const IPC::Message& message) {
+  return (IPC_MESSAGE_CLASS(message) == GuestViewMsgStart) ||
+         (IPC_MESSAGE_CLASS(message) == ExtensionsGuestViewMsgStart);

[Fady Samuel, 2015/06/01 11:32:25]

You only need to add this. Call the base class:

return GuestViewContaienrObserver(message) ||
  (IPC_MESSAGE_CLASS(message) == ExtensionsGuestViewMsgStart);

[lazyboy, 2015/06/01 16:00:07]

If we disable extensions, then we shouldn't handle
ExtensionsGuestViewMsg* messages, that's why there's a separate
class in chrome/* with #if (ENABLE_EXTENSIONS) to guard this
bit. Let me know if I'm missing something.

+}
+
+}  // namespace extensions