DevTools: add the logging aspect into the PerformanceMonitor

third_party/WebKit/Source/core/frame/PerformanceMonitor.h

Index: third_party/WebKit/Source/core/frame/PerformanceMonitor.h
diff --git a/third_party/WebKit/Source/core/frame/PerformanceMonitor.h b/third_party/WebKit/Source/core/frame/PerformanceMonitor.h
index 3fb59dac08b04b748976cf2c95b0c469d750d9a3..872eff9cf2995356c887db8458cec41521d637fa 100644
--- a/third_party/WebKit/Source/core/frame/PerformanceMonitor.h
+++ b/third_party/WebKit/Source/core/frame/PerformanceMonitor.h
@@ -13,10 +13,12 @@
 namespace blink {
 
 class DOMWindow;
+class Document;
 class ExecutionContext;
 class Frame;
 class LocalFrame;
 class Performance;
+class SourceLocation;
 
 // Performance monitor for Web Performance APIs and logging.
 // The monitor is maintained per local root.
@@ -29,13 +31,27 @@ class CORE_EXPORT PerformanceMonitor final
   WTF_MAKE_NONCOPYABLE(PerformanceMonitor);
 
  public:
+  // Instrumenting methods, TODO: codegen those.
   static void performanceObserverAdded(Performance*);
   static void performanceObserverRemoved(Performance*);
   static void willExecuteScript(ExecutionContext*);
+  static void didExecuteScript(ExecutionContext*);
+  static void willUpdateLayout(Document*);
+  static void didUpdateLayout(Document*);
+  static void willRecalculateStyle(Document*);
+  static void didRecalculateStyle(Document*);
+
+  // Direct logging API for core.
+  static void logViolation(ExecutionContext*, const String&);
+  static void logViolation(ExecutionContext*,
+                           const String&,
+                           std::unique_ptr<SourceLocation>);
 
   explicit PerformanceMonitor(LocalFrame*);
   ~PerformanceMonitor();
 
+  void setLoggingEnabled(bool);
+
   DECLARE_VIRTUAL_TRACE();
 
  private:
@@ -44,10 +60,17 @@ class CORE_EXPORT PerformanceMonitor final
 
   static PerformanceMonitor* instrumentingMonitor(ExecutionContext*);
 
-  void enable();
-  void disable();
+  void updateInstrumentation();
 
   void innerWillExecuteScript(ExecutionContext*);
+  void didExecuteScript();
+  void willUpdateLayout();
+  void didUpdateLayout();
+  void willRecalculateStyle();
+  void didRecalculateStyle();
+
+  void logViolation(const String&);
+  void logViolation(const String&, std::unique_ptr<SourceLocation>);
 
   // WebThread::TaskObserver implementation.
   void willProcessTask() override;
@@ -63,6 +86,12 @@ class CORE_EXPORT PerformanceMonitor final
       Frame* observerFrame);
 
   bool m_enabled = false;
+  bool m_loggingEnabled = false;
+  bool m_isExecutingTask = false;
+  bool m_isExecutingScript = false;
+  double m_layoutStartTime = 0;
+  double m_styleStartTime = 0;
+  double m_perTaskStyleAndLayoutTime = 0;
   Member<LocalFrame> m_localRoot;
   HeapHashSet<Member<Frame>> m_frameContexts;
   HeapHashSet<Member<Performance>> m_webPerformanceObservers;