[DevTools] Support multiple sessions in content/ domain handlers

content/browser/devtools/worker_devtools_agent_host.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 "content/browser/devtools/worker_devtools_agent_host.h"
 
 #include "base/guid.h"
 #include "base/memory/ptr_util.h"
 #include "content/browser/devtools/devtools_session.h"
 #include "content/browser/devtools/protocol/inspector_handler.h"
@@ skipping 105 matching lines @@
   DCHECK_EQ(WORKER_TERMINATED, state_);
   state_ = IsAttached() ? WORKER_PAUSED_FOR_REATTACH : WORKER_UNINSPECTED;
   worker_id_ = worker_id;
   WorkerCreated();
 }
 
 void WorkerDevToolsAgentHost::WorkerDestroyed() {
   DCHECK_NE(WORKER_TERMINATED, state_);
   if (state_ == WORKER_INSPECTED) {
     DCHECK(IsAttached());
-    protocol::InspectorHandler::FromSession(session())->TargetCrashed();
+    for (auto* inspector : protocol::InspectorHandler::ForAgentHost(this))
+      inspector->TargetCrashed();
     DetachFromWorker();
   }
   state_ = WORKER_TERMINATED;
   Release();  // Balanced in WorkerCreated().
 }
 
 bool WorkerDevToolsAgentHost::IsTerminated() {
   return state_ == WORKER_TERMINATED;
 }
 
@@ skipping 29 matching lines @@
 
 void WorkerDevToolsAgentHost::OnDispatchOnInspectorFrontend(
     const DevToolsMessageChunk& message) {
   if (!IsAttached())
     return;
 
   chunk_processor_.ProcessChunkedMessageFromAgent(message);
 }
 
 }  // namespace content