[debugger] expose side-effect free evaluate to inspector.

src/inspector/v8-debugger-agent-impl.h

 // Copyright 2015 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_INSPECTOR_V8DEBUGGERAGENTIMPL_H_
 #define V8_INSPECTOR_V8DEBUGGERAGENTIMPL_H_
 
 #include <vector>
 
 #include "src/base/macros.h"
@@ skipping 75 matching lines @@
   Response pause() override;
   Response resume() override;
   Response stepOver() override;
   Response stepInto() override;
   Response stepOut() override;
   Response setPauseOnExceptions(const String16& pauseState) override;
   Response evaluateOnCallFrame(
       const String16& callFrameId, const String16& expression,
       Maybe<String16> objectGroup, Maybe<bool> includeCommandLineAPI,
       Maybe<bool> silent, Maybe<bool> returnByValue,
-      Maybe<bool> generatePreview,
+      Maybe<bool> generatePreview, Maybe<bool> throwOnSideEffect,
       std::unique_ptr<protocol::Runtime::RemoteObject>* result,
       Maybe<protocol::Runtime::ExceptionDetails>*) override;
   Response setVariableValue(
       int scopeNumber, const String16& variableName,
       std::unique_ptr<protocol::Runtime::CallArgument> newValue,
       const String16& callFrame) override;
   Response setAsyncCallStackDepth(int depth) override;
   Response setBlackboxPatterns(
       std::unique_ptr<protocol::Array<String16>> patterns) override;
   Response setBlackboxedRanges(
@@ skipping 103 matching lines @@
   std::unique_ptr<V8Regex> m_blackboxPattern;
   protocol::HashMap<String16, std::vector<std::pair<int, int>>>
       m_blackboxedPositions;
 
   DISALLOW_COPY_AND_ASSIGN(V8DebuggerAgentImpl);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8DEBUGGERAGENTIMPL_H_