Implemented Browser Plugin (NOT FOR REVIEW)

content/browser/renderer_host/browser_plugin_message_filter.cc

Index: content/browser/renderer_host/browser_plugin_message_filter.cc
diff --git a/content/browser/renderer_host/browser_plugin_message_filter.cc b/content/browser/renderer_host/browser_plugin_message_filter.cc
new file mode 100644
index 0000000000000000000000000000000000000000..8097bc9ddb024db3eed7268f4b4cd412abf17a4d
--- /dev/null
+++ b/content/browser/renderer_host/browser_plugin_message_filter.cc
@@ -0,0 +1,91 @@
+// Copyright (c) 2012 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 "content/browser/renderer_host/browser_plugin_message_filter.h"
+
+#include "base/bind.h"
+#include "base/synchronization/waitable_event.h"
+#include "content/browser/guest_render_view_host_observer.h"
+#include "content/browser/renderer_host/render_widget_helper.h"
+#include "content/public/browser/navigation_controller.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/web_contents.h"
+#include "content/common/view_messages.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/site_instance.h"
+#include "content/public/common/content_client.h"
+#include "ipc/ipc_message_macros.h"
+
+BrowserPluginMessageFilter::BrowserPluginMessageFilter(int render_process_id)
+    : render_process_id_(render_process_id)
+{
+}
+
+BrowserPluginMessageFilter::~BrowserPluginMessageFilter() {
+}
+
+bool BrowserPluginMessageFilter::OnMessageReceived(const IPC::Message& message,
+                                                   bool* message_was_ok) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(BrowserPluginMessageFilter, message, *message_was_ok)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_OpenChannelToBrowserPlugin,
+                        OnOpenChannelToBrowserPlugin)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP_EX()
+  return handled;
+}
+
+void BrowserPluginMessageFilter::InitBrowserPluginOnUIThread(
+    int32 routing_id,
+    int32 instance_id,
+    const std::string& src) {
+
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+
+  content::RenderViewHost* render_view_host =
+      content::RenderViewHost::FromID(render_process_id_, routing_id);
+  DCHECK(render_view_host);
+  content::BrowserContext* browser_context =
+      render_view_host->GetProcess()->GetBrowserContext();
+  DCHECK(browser_context);
+
+  GURL url(src);
+  content::SiteInstance* site_instance =
+      content::SiteInstance::CreateForURL(
+          browser_context, url);
+  content::WebContents* web_contents = content::WebContents::Create(
+      browser_context,
+      site_instance,
+      MSG_ROUTING_NONE,
+      NULL, // base tab contents
+      NULL  // session storage namespace
+  );
+  // TODO(fsamuel): Set the WebContentsDelegate here.
+
+  // This should also create a RenderViewHost
+  web_contents->GetController().LoadURL(
+      url,
+      content::Referrer(),
+      content::PAGE_TRANSITION_HOME_PAGE,
+      std::string());
+  content::RenderViewHost* host = web_contents->GetRenderViewHost();
+  DCHECK(host);
+
+  GuestRenderViewHostObserver::Create(this, host, routing_id, instance_id);
+}
+
+// TODO(fsamuel): Can we get the initial URL to navigate to here too?
+void BrowserPluginMessageFilter::OnOpenChannelToBrowserPlugin(
+    int32 host_id,
+    int instance_id,
+    const std::string& src) {
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));
+  content::BrowserThread::PostTask(
+      content::BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&BrowserPluginMessageFilter::InitBrowserPluginOnUIThread,
+          base::Unretained(this), host_id, instance_id, src));
+}
+