DevTools: Make StepInto work across script boundaries and Blink process tasks.

Source/core/inspector/InspectorDebuggerAgent.h

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010-2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 160 matching lines @@
     void willPerformExecutionContextTask(ExecutionContext*, ExecutionContextTask*);
     void didPerformExecutionContextTask();
     int traceAsyncOperationStarting(ExecutionContext*, const String& operationName, int prevOperationId = 0);
     void traceAsyncOperationCompleted(ExecutionContext*, int operationId);
     void traceAsyncOperationCompletedCallbackStarting(ExecutionContext*, int operationId);
     void traceAsyncCallbackStarting(ExecutionContext*, int operationId);
     void traceAsyncCallbackCompleted();
     bool canBreakProgram();
     void breakProgram(InspectorFrontend::Debugger::Reason::Enum breakReason, PassRefPtr<JSONObject> data);
     void scriptExecutionBlockedByCSP(const String& directiveText);
+    void willCallFunction(ExecutionContext*, int scriptId, const String& scriptName, int scriptLine);
+    void willEvaluateScript(LocalFrame*, const String& url, int lineNumber);
 
     class Listener : public WillBeGarbageCollectedMixin {
     public:
         virtual ~Listener() { }
         virtual void debuggerWasEnabled() = 0;
         virtual void debuggerWasDisabled() = 0;
-        virtual void stepInto() = 0;
-        virtual void didPause() = 0;
         virtual bool canPauseOnPromiseEvent() = 0;
         virtual void didCreatePromise() = 0;
         virtual void didResolvePromise() = 0;
         virtual void didRejectPromise() = 0;
     };
     void setListener(Listener* listener) { m_listener = listener; }
 
     bool enabled();
 
     virtual ScriptDebugServer& scriptDebugServer() = 0;
@@ skipping 18 matching lines @@
     virtual SkipPauseRequest didPause(ScriptState*, const ScriptValue& callFrames, const ScriptValue& exception, const Vector<String>& hitBreakpoints, bool isPromiseRejection) override final;
     virtual void didContinue() override final;
     void reset();
     void pageDidCommitLoad();
 
 private:
     SkipPauseRequest shouldSkipExceptionPause();
     SkipPauseRequest shouldSkipStepPause();
     bool isTopCallFrameInFramework();
 
+    void schedulePauseOnNextStatementIfSteppingInto();
     void cancelPauseOnNextStatement();
     void addMessageToConsole(MessageSource, MessageType);
 
     PassRefPtr<TypeBuilder::Array<TypeBuilder::Debugger::CallFrame> > currentCallFrames();
     PassRefPtr<TypeBuilder::Debugger::StackTrace> currentAsyncStackTrace();
 
     virtual void didParseSource(const String& scriptId, const Script&, CompileResult) override final;
     virtual bool v8AsyncTaskEventsEnabled() const override final;
     virtual void didReceiveV8AsyncTaskEvent(ExecutionContext*, const String& eventType, const String& eventName, int id) override final;
     virtual bool v8PromiseEventsEnabled() const override final;
@@ skipping 10 matching lines @@
     String sourceMapURLForScript(const Script&, CompileResult);
 
     PassRefPtrWillBeRawPtr<JavaScriptCallFrame> topCallFrameSkipUnknownSources(String* scriptURL, bool* isBlackboxed);
     AsyncCallStackTracker& asyncCallStackTracker() const { return *m_asyncCallStackTracker; };
     PromiseTracker& promiseTracker() const { return *m_promiseTracker; }
 
     typedef HashMap<String, Script> ScriptsMap;
     typedef HashMap<String, Vector<String> > BreakpointIdToDebugServerBreakpointIdsMap;
     typedef HashMap<String, std::pair<String, BreakpointSource> > DebugServerBreakpointToBreakpointIdAndSourceMap;
 
+    enum DebuggerStep {
+        NoStep = 0,
+        StepInto,
+        StepOver,
+        StepOut
+    };
+
     RawPtrWillBeMember<InjectedScriptManager> m_injectedScriptManager;
     InspectorFrontend::Debugger* m_frontend;
     RefPtr<ScriptState> m_pausedScriptState;
     ScriptValue m_currentCallStack;
     ScriptsMap m_scripts;
     BreakpointIdToDebugServerBreakpointIdsMap m_breakpointIdToDebugServerBreakpointIds;
     DebugServerBreakpointToBreakpointIdAndSourceMap m_serverBreakpoints;
     String m_continueToLocationBreakpointId;
     InspectorFrontend::Debugger::Reason::Enum m_breakReason;
     RefPtr<JSONObject> m_breakAuxData;
+    DebuggerStep m_scheduledDebuggerStep;
     bool m_javaScriptPauseScheduled;
-    bool m_debuggerStepScheduled;
     bool m_steppingFromFramework;
     bool m_pausingOnNativeEvent;
     RawPtrWillBeMember<Listener> m_listener;
 
     int m_skippedStepInCount;
     int m_minFrameCountForSkip;
     bool m_skipAllPauses;
     bool m_skipContentScripts;
     OwnPtr<ScriptRegexp> m_cachedSkipStackRegExp;
     OwnPtrWillBeMember<AsyncCallStackTracker> m_asyncCallStackTracker;
     OwnPtrWillBeMember<PromiseTracker> m_promiseTracker;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorDebuggerAgent_h)