Framelet Prototype 2016 using Mojo IPC

chrome/renderer/guest_view/chrome_guest_view_container_dispatcher.cc

+// 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 "chrome/renderer/guest_view/chrome_guest_view_container_dispatcher.h"
+
+#include "components/framelet/common/framelet_messages.h"
+#include "content/public/renderer/render_frame.h"
+#include "content/public/renderer/render_thread.h"
+#include "content/public/renderer/render_view.h"
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_message_macros.h"
+#include "third_party/WebKit/public/web/WebKit.h"
+#include "third_party/WebKit/public/web/WebLocalFrame.h"
+#include "v8/include/v8.h"
+
+namespace chrome {
+
+ChromeGuestViewContainerDispatcher::ChromeGuestViewContainerDispatcher() {}
+
+ChromeGuestViewContainerDispatcher::~ChromeGuestViewContainerDispatcher() {}
+
+bool ChromeGuestViewContainerDispatcher::HandlesMessage(
+    const IPC::Message& message) {
+  return GuestViewContainerDispatcherBase::HandlesMessage(message) ||
+         (IPC_MESSAGE_CLASS(message) == ChromeGuestViewMsgStart);
+}
+
+bool ChromeGuestViewContainerDispatcher::OnControlMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(ChromeGuestViewContainerDispatcher, message)
+    IPC_MESSAGE_HANDLER(ChromeGuestViewMsg_RequestHeapSize, OnRequestHeapSize);
+    IPC_MESSAGE_UNHANDLED(
+        handled = GuestViewContainerDispatcherBase::OnControlMessageReceived(
+            message));
+  IPC_END_MESSAGE_MAP();
+  return handled;
+}
+
+void ChromeGuestViewContainerDispatcher::OnRequestHeapSize(int routing_id) {
+  size_t heap_size = 0;
+  content::RenderView* render_view =
+      content::RenderView::FromRoutingID(routing_id);
+  if (render_view) {
+    v8::Isolate* isolate = blink::mainThreadIsolate();
+    v8::HandleScope handle_scope(isolate);
+    v8::Local<v8::Context> context = render_view->GetMainRenderFrame()
+                                         ->GetWebFrame()
+                                         ->mainWorldScriptContext();
+    heap_size = context->EstimatedSize();
+  }
+  content::RenderThread::Get()->Send(
+      new ChromeGuestViewHostMsg_HeapSize(routing_id, heap_size));
+}
+
+}  // namespace chrome