Revert of [DevTools] Make DevTools clients talk directly to DevToolsAgentHost instead of using DevToolsManage…

content/browser/devtools/devtools_agent_host_impl.cc

 // 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/devtools/devtools_agent_host_impl.h"
 
 #include <map>
-#include <vector>
 
 #include "base/basictypes.h"
 #include "base/guid.h"
 #include "base/lazy_instance.h"
 #include "content/browser/devtools/devtools_manager_impl.h"
 #include "content/browser/devtools/forwarding_agent_host.h"
 #include "content/public/browser/browser_thread.h"
-#include "content/public/browser/devtools_manager_delegate.h"
 
 namespace content {
 
 namespace {
 typedef std::map<std::string, DevToolsAgentHostImpl*> Instances;
 base::LazyInstance<Instances>::Leaky g_instances = LAZY_INSTANCE_INITIALIZER;
-
-typedef std::vector<const DevToolsAgentHost::AgentStateCallback*>
-    AgentStateCallbacks;
-base::LazyInstance<AgentStateCallbacks>::Leaky g_callbacks =
-    LAZY_INSTANCE_INITIALIZER;
 }  // namespace
 
 DevToolsAgentHostImpl::DevToolsAgentHostImpl()
-    : id_(base::GenerateGUID()),
-      client_(NULL) {
+    : close_listener_(NULL),
+      id_(base::GenerateGUID()) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   g_instances.Get()[id_] = this;
 }
 
 DevToolsAgentHostImpl::~DevToolsAgentHostImpl() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   g_instances.Get().erase(g_instances.Get().find(id_));
 }
 
 //static
 scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::GetForId(
     const std::string& id) {
   if (g_instances == NULL)
     return NULL;
   Instances::iterator it = g_instances.Get().find(id);
   if (it == g_instances.Get().end())
     return NULL;
   return it->second;
 }
 
 //static
 scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::Create(
     DevToolsExternalAgentProxyDelegate* delegate) {
   return new ForwardingAgentHost(delegate);
 }
 
-void DevToolsAgentHostImpl::AttachClient(DevToolsAgentHostClient* client) {
-  scoped_refptr<DevToolsAgentHostImpl> protect(this);
-  if (client_) {
-    client_->AgentHostClosed(this, true);
-    Detach();
-  } else {
-    DevToolsManagerImpl::GetInstance()->OnClientAttached();
-  }
-  client_ = client;
-  Attach();
-}
-
-void DevToolsAgentHostImpl::DetachClient() {
-  if (!client_)
-    return;
-
-  scoped_refptr<DevToolsAgentHostImpl> protect(this);
-  client_ = NULL;
-  Detach();
-  DevToolsManagerImpl::GetInstance()->OnClientDetached();
-}
-
 bool DevToolsAgentHostImpl::IsAttached() {
-  return !!client_;
+  return !!DevToolsManagerImpl::GetInstance()->GetDevToolsClientHostFor(this);
 }
 
 void DevToolsAgentHostImpl::InspectElement(int x, int y) {
 }
 
 std::string DevToolsAgentHostImpl::GetId() {
   return id_;
 }
 
 WebContents* DevToolsAgentHostImpl::GetWebContents() {
   return NULL;
 }
 
 void DevToolsAgentHostImpl::DisconnectWebContents() {
 }
 
 void DevToolsAgentHostImpl::ConnectWebContents(WebContents* wc) {
 }
 
 bool DevToolsAgentHostImpl::IsWorker() const {
   return false;
 }
 
-void DevToolsAgentHostImpl::HostClosed() {
-  if (!client_)
-    return;
-
-  scoped_refptr<DevToolsAgentHostImpl> protect(this);
-  client_->AgentHostClosed(this, false);
-  client_ = NULL;
-  DevToolsManagerImpl::GetInstance()->OnClientDetached();
-}
-
-void DevToolsAgentHostImpl::SendMessageToClient(const std::string& message) {
-  if (!client_)
-    return;
-  client_->DispatchProtocolMessage(this, message);
-}
-
-// static
-void DevToolsAgentHost::DetachAllClients() {
-  if (g_instances == NULL)
-    return;
-
-  // Make a copy, since detaching may lead to agent destruction, which
-  // removes it from the instances.
-  Instances copy = g_instances.Get();
-  for (Instances::iterator it(copy.begin()); it != copy.end(); ++it) {
-    DevToolsAgentHostImpl* agent_host = it->second;
-    if (agent_host->client_) {
-      scoped_refptr<DevToolsAgentHostImpl> protect(agent_host);
-      agent_host->client_->AgentHostClosed(agent_host, true);
-      agent_host->client_ = NULL;
-      agent_host->Detach();
-      DevToolsManagerImpl::GetInstance()->OnClientDetached();
-    }
+void DevToolsAgentHostImpl::NotifyCloseListener() {
+  if (close_listener_) {
+    scoped_refptr<DevToolsAgentHostImpl> protect(this);
+    close_listener_->AgentHostClosing(this);
+    close_listener_ = NULL;
   }
 }
 
-// static
-void DevToolsAgentHost::AddAgentStateCallback(
-    const AgentStateCallback& callback) {
-  g_callbacks.Get().push_back(&callback);
-}
-
-// static
-void DevToolsAgentHost::RemoveAgentStateCallback(
-    const AgentStateCallback& callback) {
-  if (g_callbacks == NULL)
-    return;
-
-  AgentStateCallbacks* callbacks_ = g_callbacks.Pointer();
-  AgentStateCallbacks::iterator it =
-      std::find(callbacks_->begin(), callbacks_->end(), &callback);
-  DCHECK(it != callbacks_->end());
-  callbacks_->erase(it);
-}
-
-// static
-void DevToolsAgentHostImpl::NotifyCallbacks(
-    DevToolsAgentHostImpl* agent_host, bool attached) {
-  AgentStateCallbacks copy(g_callbacks.Get());
-  DevToolsManagerImpl* manager = DevToolsManagerImpl::GetInstance();
-  if (manager->delegate())
-    manager->delegate()->DevToolsAgentStateChanged(agent_host, attached);
-  for (AgentStateCallbacks::iterator it = copy.begin(); it != copy.end(); ++it)
-     (*it)->Run(agent_host, attached);
-}
-
-void DevToolsAgentHostImpl::Inspect(BrowserContext* browser_context) {
-  DevToolsManagerImpl* manager = DevToolsManagerImpl::GetInstance();
-  if (manager->delegate())
-    manager->delegate()->Inspect(browser_context, this);
-}
-
 }  // namespace content