DevTools: introduce DevToolsAgentHost

content/browser/debugger/render_view_devtools_agent_host.cc

+// Copyright (c) 2011 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/debugger/render_view_devtools_agent_host.h"
+
+#include "base/basictypes.h"
+#include "content/browser/child_process_security_policy.h"
+#include "content/browser/renderer_host/render_process_host.h"
+#include "content/browser/renderer_host/render_view_host.h"
+#include "content/browser/site_instance.h"
+#include "content/common/notification_service.h"
+
+RenderViewDevToolsAgentHost::Instances RenderViewDevToolsAgentHost::instances_;
+
+DevToolsAgentHost* RenderViewDevToolsAgentHost::FindFor(
+    RenderViewHost* rvh) {
+  Instances::iterator it = instances_.find(rvh);
+  if (it != instances_.end())
+    return it->second;
+  return NULL;
+}
+
+DevToolsAgentHost* RenderViewDevToolsAgentHost::CreateFor(
+    RenderViewHost* rvh) {
+  DCHECK(!FindFor(rvh));
+  RenderViewDevToolsAgentHost* result = new RenderViewDevToolsAgentHost(rvh);
+  return result;
+}
+
+RenderViewDevToolsAgentHost::RenderViewDevToolsAgentHost(RenderViewHost* rvh)
+    : render_view_host_(rvh) {
+  ChildProcessSecurityPolicy::GetInstance()->GrantReadRawCookies(
+      rvh->process()->id());
+  registrar_.Add(this, content::NOTIFICATION_RENDER_VIEW_HOST_DELETED,
+                 Source<RenderViewHost>(rvh));
+  instances_[rvh] = this;
+}
+
+void RenderViewDevToolsAgentHost::SendMessageToAgent(IPC::Message* msg) {
+  msg->set_routing_id(render_view_host_->routing_id());
+  render_view_host_->Send(msg);
+}
+
+void RenderViewDevToolsAgentHost::NotifyClientClosing() {
+  NotificationService::current()->Notify(
+      content::NOTIFICATION_DEVTOOLS_WINDOW_CLOSING,
+      Source<content::BrowserContext>(
+          render_view_host_->site_instance()->GetProcess()->browser_context()),
+      Details<RenderViewHost>(render_view_host_));
+}
+
+void RenderViewDevToolsAgentHost::ClientDetached() {
+  delete this;
+}
+
+void RenderViewDevToolsAgentHost::Observe(int type,
+                                          const NotificationSource& source,
+                                          const NotificationDetails& details) {
+  DCHECK(type == content::NOTIFICATION_RENDER_VIEW_HOST_DELETED);
+  NotifyCloseListener();
+}
+
+RenderViewDevToolsAgentHost::~RenderViewDevToolsAgentHost() {
+  instances_.erase(render_view_host_);
+
+  int process_id = render_view_host_->process()->id();
+  for (Instances::iterator it = instances_.begin();
+       it != instances_.end();
+       ++it) {
+    if (it->first->process()->id() == process_id)
+      return;
+  }
+  // We've disconnected from the last renderer -> revoke cookie permissions.
+  ChildProcessSecurityPolicy::GetInstance()->RevokeReadRawCookies(process_id);
+}
+