DevTools: introduce browser domain for basic target discovery.

chrome/browser/devtools/devtools_ui_bindings.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/browser/devtools/devtools_ui_bindings.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/base64.h"
@@ skipping 404 matching lines @@
       web_contents_->GetMainFrame(),
       base::Bind(&DevToolsUIBindings::HandleMessageFromDevToolsFrontend,
                  base::Unretained(this))));
 }
 
 DevToolsUIBindings::~DevToolsUIBindings() {
   for (const auto& pair : pending_requests_)
     delete pair.first;
 
   if (agent_host_.get())
-    agent_host_->DetachClient();
+    agent_host_->DetachClient(this);
 
   for (IndexingJobsMap::const_iterator jobs_it(indexing_jobs_.begin());
        jobs_it != indexing_jobs_.end(); ++jobs_it) {
     jobs_it->second->Stop();
   }
   indexing_jobs_.clear();
   SetDevicesUpdatesEnabled(false);
 
   // Remove self from global list.
   DevToolsUIBindingsList* instances = g_instances.Pointer();
@@ skipping 589 matching lines @@
 
 void DevToolsUIBindings::SetDelegate(Delegate* delegate) {
   delegate_.reset(delegate);
 }
 
 void DevToolsUIBindings::AttachTo(
     const scoped_refptr<content::DevToolsAgentHost>& agent_host) {
   if (agent_host_.get())
     Detach();
   agent_host_ = agent_host;
-  agent_host_->AttachClient(this);
+  // DevToolsUIBindings terminates existing debugging connections and starts
+  // debugging.
+  agent_host_->ForceAttachClient(this);
 }
 
 void DevToolsUIBindings::Reattach() {
   DCHECK(agent_host_.get());
   reattaching_ = true;
 }
 
 void DevToolsUIBindings::Detach() {
   if (agent_host_.get())
-    agent_host_->DetachClient();
+    agent_host_->DetachClient(this);
   agent_host_ = NULL;
 }
 
 bool DevToolsUIBindings::IsAttachedTo(content::DevToolsAgentHost* agent_host) {
   return agent_host_.get() == agent_host;
 }
 
 void DevToolsUIBindings::CallClientFunction(const std::string& function_name,
                                             const base::Value* arg1,
                                             const base::Value* arg2,
@@ skipping 14 matching lines @@
   }
   javascript.append(");");
   web_contents_->GetMainFrame()->ExecuteJavaScript(
       base::UTF8ToUTF16(javascript));
 }
 
 void DevToolsUIBindings::DocumentAvailableInMainFrame() {
   if (!reattaching_)
     return;
   reattaching_ = false;
-  agent_host_->DetachClient();
+  agent_host_->DetachClient(this);
   agent_host_->AttachClient(this);
 }
 
 void DevToolsUIBindings::DocumentOnLoadCompletedInMainFrame() {
   // In the DEBUG_DEVTOOLS mode, the DocumentOnLoadCompletedInMainFrame event
   // arrives before the LoadCompleted event, thus it should not trigger the
   // frontend load handling.
 #if !defined(DEBUG_DEVTOOLS)
   FrontendLoaded();
 #endif
 }
 
 void DevToolsUIBindings::DidNavigateMainFrame() {
   frontend_loaded_ = false;
 }
 
 void DevToolsUIBindings::FrontendLoaded() {
   if (frontend_loaded_)
     return;
   frontend_loaded_ = true;
 
   // Call delegate first - it seeds importants bit of information.
   delegate_->OnLoadCompleted();
 
   AddDevToolsExtensionsToClient();
 }