Adding MimeHandlerView.

extensions/browser/extension_message_filter.cc

Index: extensions/browser/extension_message_filter.cc
diff --git a/extensions/browser/extension_message_filter.cc b/extensions/browser/extension_message_filter.cc
index 7529fd02ae427d8c51390618bc958af7af1a5fe6..dd807aa7aaf09f88538e365c05b72a7a1ed7cf7e 100644
--- a/extensions/browser/extension_message_filter.cc
+++ b/extensions/browser/extension_message_filter.cc
@@ -46,6 +46,7 @@ void ExtensionMessageFilter::OverrideThreadForMessage(
     case ExtensionHostMsg_AttachGuest::ID:
     case ExtensionHostMsg_RemoveListener::ID:
     case ExtensionHostMsg_AddLazyListener::ID:
+    case ExtensionHostMsg_CreateMimeHandlerViewGuest::ID:
     case ExtensionHostMsg_RemoveLazyListener::ID:
     case ExtensionHostMsg_AddFilteredListener::ID:
     case ExtensionHostMsg_RemoveFilteredListener::ID:
@@ -76,6 +77,8 @@ bool ExtensionMessageFilter::OnMessageReceived(const IPC::Message& message) {
                         OnExtensionAddLazyListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AttachGuest,
                         OnExtensionAttachGuest)
+    IPC_MESSAGE_HANDLER(ExtensionHostMsg_CreateMimeHandlerViewGuest,
+                        OnExtensionCreateMimeHandlerViewGuest)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_RemoveLazyListener,
                         OnExtensionRemoveLazyListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AddFilteredListener,
@@ -167,6 +170,21 @@ void ExtensionMessageFilter::OnExtensionAttachGuest(
                        params);
 }
 
+void ExtensionMessageFilter::OnExtensionCreateMimeHandlerViewGuest(
+    int render_frame_id,
+    const std::string& embedder_url,
+    const std::string& mime_type,
+    int element_instance_id) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  extensions::GuestViewManager* manager =
+      extensions::GuestViewManager::FromBrowserContext(browser_context_);
+  manager->CreateMimeHandlerViewGuest(render_process_id_,

[Fady Samuel, 2014/08/29 18:52:32]

Do we have to create a new method in GuestViewManager? I'd prefer it wasn't
aware of specific GuestView types.

[lazyboy, 2014/08/29 22:08:25]

I've moved the creation code here.

+                                      render_frame_id,
+                                      embedder_url,
+                                      mime_type,
+                                      element_instance_id);
+}
+
 void ExtensionMessageFilter::OnExtensionRemoveLazyListener(
     const std::string& extension_id, const std::string& event_name) {
   EventRouter* router = EventRouter::Get(browser_context_);