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

Source/bindings/core/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. 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
@@ skipping 142 matching lines @@
     RefPtrWillBeRawPtr<LocalFrame> protect(m_frame.get());
     return ScriptController::callFunction(m_frame->document(), function, receiver, argc, info, m_isolate);
 }
 
 v8::Local<v8::Value> ScriptController::callFunction(ExecutionContext* context, v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> info[], v8::Isolate* isolate)
 {
     TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "FunctionCall", "data", devToolsTraceEventData(isolate, context, function));
     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline.stack"), "CallStack", "stack", InspectorCallStackEvent::currentCallStack());
     // FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeline migrates to tracing.
     InspectorInstrumentationCookie cookie;
-    if (InspectorInstrumentation::timelineAgentEnabled(context)) {
+    if (InspectorInstrumentation::hasFrontends()) {
         int scriptId = 0;
         String resourceName;
         int lineNumber = 1;
         GetDevToolsFunctionInfo(function, isolate, scriptId, resourceName, lineNumber);
         cookie = InspectorInstrumentation::willCallFunction(context, scriptId, resourceName, lineNumber);
     }
 
     v8::Local<v8::Value> result = V8ScriptRunner::callFunction(function, context, receiver, argc, info, isolate);
 
     InspectorInstrumentation::didCallFunction(cookie);
@@ skipping 473 matching lines @@
         resultArray->Set(i, evaluationResult);
     }
 
     if (results) {
         for (size_t i = 0; i < resultArray->Length(); ++i)
             results->append(resultArray->Get(i));
     }
 }
 
 } // namespace blink