Rename ChromeBrowserPluginDelegate to GuestViewContainer

extensions/renderer/guest_view/guest_view_container.cc

 // Copyright 2014 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 "chrome/renderer/browser_plugin/chrome_browser_plugin_delegate.h"
+#include "extensions/renderer/guest_view/guest_view_container.h"
 
 #include "content/public/renderer/browser_plugin_delegate.h"
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/extension_messages.h"
+#include "extensions/common/guest_view/guest_view_constants.h"
 
-ChromeBrowserPluginDelegate::ChromeBrowserPluginDelegate(
+namespace extensions {
+
+GuestViewContainer::GuestViewContainer(
     content::RenderFrame* render_frame,
     const std::string& mime_type)
     : content::BrowserPluginDelegate(render_frame, mime_type),
       content::RenderFrameObserver(render_frame),
       mime_type_(mime_type),
-      // TODO(lazyboy): Use browser_plugin::kInstanceIDNone.
-      element_instance_id_(0) {
+      element_instance_id_(guestview::kInstanceIDNone) {
 }
 
-ChromeBrowserPluginDelegate::~ChromeBrowserPluginDelegate() {
+GuestViewContainer::~GuestViewContainer() {
 }
 
-void ChromeBrowserPluginDelegate::SetElementInstanceID(
+void GuestViewContainer::SetElementInstanceID(
     int element_instance_id) {
   element_instance_id_ = element_instance_id;
 }
 
-void ChromeBrowserPluginDelegate::DidFinishLoading() {
-  DCHECK_NE(element_instance_id_, 0);
+void GuestViewContainer::DidFinishLoading() {
+  if (mime_type_.empty())
+    return;
+
+  DCHECK_NE(element_instance_id_, guestview::kInstanceIDNone);
   render_frame()->Send(new ExtensionHostMsg_CreateMimeHandlerViewGuest(
       routing_id(), html_string_, mime_type_, element_instance_id_));
 }
 
-void ChromeBrowserPluginDelegate::DidReceiveData(const char* data,
-                                                 int data_length) {
+void GuestViewContainer::DidReceiveData(const char* data, int data_length) {
   std::string value(data, data_length);
   html_string_ += value;
 }
 
-bool ChromeBrowserPluginDelegate::OnMessageReceived(
-    const IPC::Message& message) {
+bool GuestViewContainer::OnMessageReceived(const IPC::Message& message) {
   if (message.type() != ExtensionMsg_CreateMimeHandlerViewGuestACK::ID)
     return false;
 
-  DCHECK_NE(element_instance_id_, 0);
-  int element_instance_id = 0;
+  DCHECK_NE(element_instance_id_, guestview::kInstanceIDNone);
+  int element_instance_id = guestview::kInstanceIDNone;
   PickleIterator iter(message);
   bool success = iter.ReadInt(&element_instance_id);
   DCHECK(success);
   if (element_instance_id != element_instance_id_)
     return false;
 
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(ChromeBrowserPluginDelegate, message)
+  IPC_BEGIN_MESSAGE_MAP(GuestViewContainer, message)
     IPC_MESSAGE_HANDLER(ExtensionMsg_CreateMimeHandlerViewGuestACK,
                         OnCreateMimeHandlerViewGuestACK)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void ChromeBrowserPluginDelegate::OnCreateMimeHandlerViewGuestACK(
+void GuestViewContainer::OnCreateMimeHandlerViewGuestACK(
     int element_instance_id) {
-  DCHECK_NE(element_instance_id_, 0);
+  DCHECK_NE(element_instance_id_, guestview::kInstanceIDNone);
   DCHECK_EQ(element_instance_id_, element_instance_id);
+  DCHECK(!mime_type_.empty());
   render_frame()->AttachGuest(element_instance_id);
 }
+
+}  // namespace extensions