[inspector] improved V8Debugger::breakProgram method

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 336 matching lines @@
     v8::debug::DebugBreak(m_isolate);
   else
     v8::debug::CancelDebugBreak(m_isolate);
 }
 
 bool V8Debugger::canBreakProgram() {
   if (!m_breakpointsActivated) return false;
   return !v8::debug::AllFramesOnStackAreBlackboxed(m_isolate);
 }
 
-void V8Debugger::breakProgram() {
+bool V8Debugger::breakProgram(int targetContextGroupId) {
   // Don't allow nested breaks.
-  if (isPaused()) return;
-  if (!canBreakProgram()) return;
+  if (isPaused()) return true;
+  if (!canBreakProgram()) return true;
+  DCHECK(targetContextGroupId);
+  m_targetContextGroupId = targetContextGroupId;
   v8::debug::BreakRightNow(m_isolate);
+  return m_inspector->enabledDebuggerAgentForGroup(targetContextGroupId);
 }
 
 void V8Debugger::continueProgram(int targetContextGroupId) {
   if (m_pausedContextGroupId != targetContextGroupId) return;
   if (isPaused()) m_inspector->client()->quitMessageLoopOnPause();
   m_pausedContext.Clear();
   m_executionState.Clear();
 }
 
 void V8Debugger::stepIntoStatement(int targetContextGroupId) {
@@ skipping 705 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