Add a convenience method to get the debugged context

src/debug/debug.cc

 // Copyright 2012 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/debug/debug.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 2475 matching lines @@
 
 v8::Local<v8::Value> EventDetailsImpl::GetCallbackData() const {
   return v8::Utils::ToLocal(callback_data_);
 }
 
 
 v8::Debug::ClientData* EventDetailsImpl::GetClientData() const {
   return client_data_;
 }
 
+v8::Isolate* EventDetailsImpl::GetIsolate() const {
+  return reinterpret_cast<v8::Isolate*>(exec_state_->GetIsolate());
+}
 
 CommandMessage::CommandMessage() : text_(Vector<uint16_t>::empty()),
                                    client_data_(NULL) {
 }
 
 
 CommandMessage::CommandMessage(const Vector<uint16_t>& text,
                                v8::Debug::ClientData* data)
     : text_(text),
       client_data_(data) {
@@ skipping 81 matching lines @@
 }
 
 
 void LockingCommandMessageQueue::Clear() {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
   queue_.Clear();
 }
 
 }  // namespace internal
 }  // namespace v8