[inspector] expose V8InspectorSession::breakProgram in test harness.

test/inspector/inspector-impl.h

 // 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.
 
 #ifndef V8_TEST_INSPECTOR_PROTOCOL_INSPECTOR_IMPL_H_
 #define V8_TEST_INSPECTOR_PROTOCOL_INSPECTOR_IMPL_H_
 
 #include "include/v8-inspector.h"
 #include "include/v8.h"
 #include "src/base/macros.h"
 #include "src/base/platform/platform.h"
 #include "test/inspector/task-runner.h"
 
 class InspectorClientImpl : public v8_inspector::V8InspectorClient {
  public:
   class FrontendChannel {
    public:
     virtual ~FrontendChannel() = default;
     virtual void SendMessageToFrontend(
         const v8_inspector::StringView& message) = 0;
   };
 
   InspectorClientImpl(TaskRunner* task_runner,
                       FrontendChannel* frontend_channel,
                       v8::base::Semaphore* ready_semaphore);
   virtual ~InspectorClientImpl();
 
   static v8_inspector::V8Inspector* InspectorFromContext(
       v8::Local<v8::Context> context);
+  static v8_inspector::V8InspectorSession* SessionFromContext(
+      v8::Local<v8::Context> context);
 
   void setCurrentTimeMSForTest(double time);
 
+  v8_inspector::V8InspectorSession* session() const { return session_.get(); }
+
  private:
   // V8InspectorClient implementation.
   v8::Local<v8::Context> ensureDefaultContextInGroup(
       int context_group_id) override;
   double currentTimeMS() override;
   void runMessageLoopOnPause(int context_group_id) override;
   void quitMessageLoopOnPause() override;
 
-  static v8_inspector::V8InspectorSession* SessionFromContext(
-      v8::Local<v8::Context> context);
-
   friend class SendMessageToBackendTask;
 
   friend class ConnectTask;
   void connect(v8::Local<v8::Context> context);
 
   std::unique_ptr<v8_inspector::V8Inspector> inspector_;
   std::unique_ptr<v8_inspector::V8InspectorSession> session_;
   std::unique_ptr<v8_inspector::V8Inspector::Channel> channel_;
 
   v8::Isolate* isolate_;
@@ skipping 21 matching lines @@
   }
 
  private:
   static void SendMessageToBackend(
       const v8::FunctionCallbackInfo<v8::Value>& args);
 
   static TaskRunner* backend_task_runner_;
 };
 
 #endif  //  V8_TEST_INSPECTOR_PROTOCOL_INSPECTOR_IMPL_H_