Move guest view container message routing out of content/.

GuestViews used to receive messages through BrowserPlugin, this CL makes
GuestView message routing possible without BrowserPlugin. This is a
prerequisite for making <webview> pluginless.

BUG=330264
Test=None, internal change only.

Review URL: https://codereview.chromium.org/1161483004

Cr-Commit-Position: refs/heads/master@{#332430}

2 files changed, 48 insertions, 0 deletions

diff --git a/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.cc b/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.cc
new file mode 100644
index 0000000..16f1f47
--- /dev/null
+++ b/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.cc
@@ -0,0 +1,26 @@
+// 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_dispatcher.h"
+
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_message_macros.h"
+
+namespace extensions {
+
+ExtensionsGuestViewContainerDispatcher::
+    ExtensionsGuestViewContainerDispatcher() {
+}
+
+ExtensionsGuestViewContainerDispatcher::
+    ~ExtensionsGuestViewContainerDispatcher() {
+}
+
+bool ExtensionsGuestViewContainerDispatcher::HandlesMessage(
+    const IPC::Message& message) {
+  return GuestViewContainerDispatcher::HandlesMessage(message) ||
+         (IPC_MESSAGE_CLASS(message) == ExtensionsGuestViewMsgStart);
+}
+
+}  // namespace extensions
diff --git a/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h b/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h
new file mode 100644
index 0000000..8d1d36a
--- /dev/null
+++ b/extensions/renderer/guest_view/extensions_guest_view_container_dispatcher.h
@@ -0,0 +1,22 @@
+// 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 "components/guest_view/renderer/guest_view_container_dispatcher.h"
+
+namespace extensions {
+
+class ExtensionsGuestViewContainerDispatcher
+    : public guest_view::GuestViewContainerDispatcher {
+ public:
+  ExtensionsGuestViewContainerDispatcher();
+  ~ExtensionsGuestViewContainerDispatcher() override;
+
+ private:
+  // guest_view::GuestViewContainerDispatcher implementation.
+  bool HandlesMessage(const IPC::Message& message) override;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionsGuestViewContainerDispatcher);
+};
+
+}  // namespace extensions