[inspector] extend protocol for code coverage.

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

Index: src/inspector/v8-runtime-agent-impl.h
diff --git a/src/inspector/v8-runtime-agent-impl.h b/src/inspector/v8-runtime-agent-impl.h
index 9caa1fba47c3c30eac162d96dd46be7dc39ee23e..16da1ae4ec8a4d0540541fbcc3e96751eff09dc9 100644
--- a/src/inspector/v8-runtime-agent-impl.h
+++ b/src/inspector/v8-runtime-agent-impl.h
@@ -97,6 +97,14 @@ class V8RuntimeAgentImpl : public protocol::Runtime::Backend {
                  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 takeBestEffortCoverage(
+      std::unique_ptr<protocol::Array<protocol::Runtime::ScriptCoverage>>*
+          out_result) override;
 
   void reset();
   void reportExecutionContextCreated(InspectedContext*);