Adding MimeHandlerView.

chrome/renderer/browser_plugin/chrome_browser_plugin_delegate.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 "content/public/renderer/browser_plugin_delegate.h"
+#include "content/public/renderer/render_thread.h"
+#include "content/public/renderer/render_frame.h"
+#include "content/public/renderer/render_view.h"
+#include "extensions/common/extension_messages.h"
+
+using content::RenderView;
+
+ChromeBrowserPluginDelegate::ChromeBrowserPluginDelegate(
+    int routing_id, const std::string& mime_type)
+    : content::BrowserPluginDelegate(routing_id, mime_type),
+      content::RenderViewObserver(RenderView::FromRoutingID(routing_id)),

[Fady Samuel, 2014/09/02 15:08:24]

This should probably be RenderFrameObserver.

[lazyboy, 2014/09/02 20:17:22]

Done.

+      routing_id_(routing_id),

[Fady Samuel, 2014/09/02 15:08:24]

No need for this. RenderViewObserver (should be RenderFrameObserver) knows its
routing_id()

[lazyboy, 2014/09/02 20:17:22]

Done.

+      mime_type_(mime_type),
+      element_instance_id_(-1) {

[Fady Samuel, 2014/09/02 15:08:25]

nit: Should be kInstanceIDNone eventually. I think guest_view has this constant
as well. We might want to move guest_view_constants to a common directory.

[lazyboy, 2014/09/02 20:17:22]

Hmmm, there's browser_plugin::kInstanceIDNone as well which suits better here.
I've added a TODO which can be fixed separately as it's better to touch less
files in this CL.

+}
+
+ChromeBrowserPluginDelegate::~ChromeBrowserPluginDelegate() {
+}
+
+void ChromeBrowserPluginDelegate::SetElementInstanceID(
+    int element_instance_id) {
+  element_instance_id_ = element_instance_id;
+}
+
+void ChromeBrowserPluginDelegate::DidFinishLoading() {
+  DCHECK(content::RenderThread::Get());

[Fady Samuel, 2014/09/02 15:08:24]

Why is this here?

[lazyboy, 2014/09/02 20:17:21]

Removed
(leftover as I was using RenderThread.Send before)

+  render_view()->Send(
+      new ExtensionHostMsg_CreateMimeHandlerViewGuest(
+          routing_id_, html_string_, mime_type_, element_instance_id_));
+}
+
+void ChromeBrowserPluginDelegate::DidReceiveData(
+    const char* data, int data_length) {
+  std::string value(data, data_length);
+  html_string_ += value;
+}
+
+bool ChromeBrowserPluginDelegate::OnMessageReceived(
+    const IPC::Message& message) {
+  if (message.type() != ExtensionMsg_CreateMimeHandlerViewGuestACK::ID)
+    return false;
+

[Fady Samuel, 2014/09/02 15:08:25]

DCHECK that element_instance_id_ != kInstanceIDNone.

[lazyboy, 2014/09/02 20:17:21]

Done.

+  int element_instance_id = 0;
+  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_MESSAGE_HANDLER(ExtensionMsg_CreateMimeHandlerViewGuestACK,
+                        OnCreateMimeHandlerViewGuestACK)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void ChromeBrowserPluginDelegate::OnCreateMimeHandlerViewGuestACK(
+    int element_instance_id) {
+  // TODO(lazyboy): Using GetMainRenderFrame() is OK?

[Fady Samuel, 2014/09/02 15:08:24]

Ohh, this should be a RenderFrameObserver, and not a RenderViewObserver..I
forgot about that. sorry.

[Fady Samuel, 2014/09/02 15:08:25]

DCHECK that element_instance_id_ != kInstanceIDNone

[lazyboy, 2014/09/02 20:17:22]

Done.

[lazyboy, 2014/09/02 20:17:22]

Done.

+  render_view()->GetMainRenderFrame()->AttachGuest(element_instance_id);
+}