Remove unused method from PaintTimingDetectors

Change-Id: I7599b8c08a602307da5a5dc7b181d3cec86daac8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1769303Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690039}

third_party/blink/renderer/core/paint/image_paint_timing_detector.h

@@ -120,10 +120,6 @@ class CORE_EXPORT ImageRecordsManager {
   void OnImageLoadedInternal(base::WeakPtr<ImageRecord>&,
                              unsigned current_frame_index);
 
-  inline bool NeedMeausuringPaintTime() const {
-    return !images_queued_for_paint_time_.IsEmpty();
-  }
-
   // Compare the last frame index in queue with the last frame index that has
   // registered for assigning paint time.
   inline bool HasUnregisteredRecordsInQueued(
@@ -245,13 +241,10 @@ class CORE_EXPORT ImagePaintTimingDetector final
  private:
   friend class LargestContentfulPaintCalculatorTest;
 
-  ImageRecord* FindLargestPaintCandidate() const;
-
   void PopulateTraceValue(TracedValue&, const ImageRecord& first_image_paint);
   void RegisterNotifySwapTime();
   void ReportCandidateToTrace(ImageRecord&);
   void ReportNoCandidateToTrace();
-  void Deactivate();
 
   // Used to find the last candidate.
   unsigned count_candidates_ = 0;

third_party/blink/renderer/core/paint/text_paint_timing_detector.h

@@ -125,9 +125,6 @@ class CORE_EXPORT TextRecordsManager {
            invisible_objects_.Contains(&object);
   }
 
-  size_t CountVisibleObjects() const { return visible_objects_.size(); }
-  size_t CountInvisibleObjects() const { return invisible_objects_.size(); }
-
   inline bool IsKnownVisible(const LayoutObject& object) const {
     return visible_objects_.Contains(&object);
   }
@@ -138,7 +135,6 @@ class CORE_EXPORT TextRecordsManager {
 
   void CleanUp();
   void CleanUpLargestTextPaint();
-  void StopRecordingLargestTextPaint();
 
   bool HasTextElementTiming() const { return text_element_timing_; }
   void SetTextElementTiming(TextElementTiming* text_element_timing) {