[inspector] extend protocol for code coverage.

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

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 79 matching lines @@
   Response discardConsoleEntries() override;
   Response compileScript(const String16& expression, const String16& sourceURL,
                          bool persistScript, Maybe<int> executionContextId,
                          Maybe<String16>*,
                          Maybe<protocol::Runtime::ExceptionDetails>*) override;
   void runScript(const String16&, Maybe<int> executionContextId,
                  Maybe<String16> objectGroup, Maybe<bool> silent,
                  Maybe<bool> includeCommandLineAPI, Maybe<bool> returnByValue,
                  Maybe<bool> generatePreview, Maybe<bool> awaitPromise,
                  std::unique_ptr<RunScriptCallback>) override;
+  Response startPreciseCoverage() override;
+  Response stopPreciseCoverage() override;
+  Response takePreciseCoverage(
+      std::unique_ptr<protocol::Array<protocol::Runtime::ScriptCoverage>>*
+          out_result) override;
+  Response getBestEffortCoverage(
+      std::unique_ptr<protocol::Array<protocol::Runtime::ScriptCoverage>>*
+          out_result) override;
 
   void reset();
   void reportExecutionContextCreated(InspectedContext*);
   void reportExecutionContextDestroyed(InspectedContext*);
   void inspect(std::unique_ptr<protocol::Runtime::RemoteObject> objectToInspect,
                std::unique_ptr<protocol::DictionaryValue> hints);
   void messageAdded(V8ConsoleMessage*);
   bool enabled() const { return m_enabled; }
 
  private:
   bool reportMessage(V8ConsoleMessage*, bool generatePreview);
 
   V8InspectorSessionImpl* m_session;
   protocol::DictionaryValue* m_state;
   protocol::Runtime::Frontend m_frontend;
   V8InspectorImpl* m_inspector;
   bool m_enabled;
   protocol::HashMap<String16, std::unique_ptr<v8::Global<v8::Script>>>
       m_compiledScripts;
 
   DISALLOW_COPY_AND_ASSIGN(V8RuntimeAgentImpl);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8RUNTIMEAGENTIMPL_H_