[inspector] Test how multiple sessions interact with pausing

src/inspector/v8-debugger.cc

 // Copyright 2016 the V8 project 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 "src/inspector/v8-debugger.h"
 
 #include "src/inspector/debugger-script.h"
 #include "src/inspector/inspected-context.h"
 #include "src/inspector/protocol/Protocol.h"
 #include "src/inspector/script-breakpoint.h"
@@ skipping 942 matching lines @@
   else
     m_maxAsyncCallStackDepthMap[agent] = depth;
 
   int maxAsyncCallStackDepth = 0;
   for (const auto& pair : m_maxAsyncCallStackDepthMap) {
     if (pair.second > maxAsyncCallStackDepth)
       maxAsyncCallStackDepth = pair.second;
   }
 
   if (m_maxAsyncCallStackDepth == maxAsyncCallStackDepth) return;
+  // TODO(dgozman): ideally, this should be per context group.
   m_maxAsyncCallStackDepth = maxAsyncCallStackDepth;
   if (!maxAsyncCallStackDepth) allAsyncTasksCanceled();
 }
 
 void V8Debugger::asyncTaskCreatedForStack(void* task, void* parentTask) {
   if (!m_maxAsyncCallStackDepth) return;
   if (parentTask) m_parentTask[task] = parentTask;
   v8::HandleScope scope(m_isolate);
   std::shared_ptr<AsyncStackTrace> asyncCreation =
       AsyncStackTrace::capture(this, currentContextGroupId(), String16(),
@@ skipping 235 matching lines @@
   fprintf(stdout, "Async stacks count: %d\n", m_asyncStacksCount);
   fprintf(stdout, "Scheduled async tasks: %zu\n", m_asyncTaskStacks.size());
   fprintf(stdout, "Created async tasks: %zu\n",
           m_asyncTaskCreationStacks.size());
   fprintf(stdout, "Async tasks with parent: %zu\n", m_parentTask.size());
   fprintf(stdout, "Recurring async tasks: %zu\n", m_recurringTasks.size());
   fprintf(stdout, "\n");
 }
 
 }  // namespace v8_inspector