Add |GraphicsLayerDebugInfo::getAnnotatedInvalidationRects|

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index 2772d053cb54e5454e14fc5d323de93a3ff39d7f..8b696c20d161dffec7aa4626ed11f7cfd482f77a 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -99,6 +99,20 @@ namespace {
 
 static bool gModifyRenderTreeStructureAnyState = false;
 
+bool firstPaintInvalidationTrackingEnabled()
+{
+    bool isEnabled;
+    TRACE_EVENT_CATEGORY_GROUP_ENABLED(TRACE_DISABLED_BY_DEFAULT("blink.invalidation"), &isEnabled);
+    return isEnabled;
+}
+
+typedef WillBeHeapHashSet<RawPtrWillBeWeakMember<const RenderObject> > RenderObjectWeakSet;
+RenderObjectWeakSet& renderObjectNeverHadPaintInvalidationSet()
+{
+    DEFINE_STATIC_LOCAL(RenderObjectWeakSet, set, ());
+    return set;
+}
+
 } // namespace
 
 using namespace HTMLNames;
@@ -233,6 +247,9 @@ RenderObject::RenderObject(Node* node)
 #endif
     , m_bitfields(node)
 {
+    if (firstPaintInvalidationTrackingEnabled())
+        renderObjectNeverHadPaintInvalidationSet().add(this);
+
 #ifndef NDEBUG
     renderObjectCounter.increment();
 #endif
@@ -241,6 +258,9 @@ RenderObject::RenderObject(Node* node)
 
 RenderObject::~RenderObject()
 {
+    if (firstPaintInvalidationTrackingEnabled())
+        renderObjectNeverHadPaintInvalidationSet().remove(this);
+
     ASSERT(!m_hasAXObject);
 #if ENABLE(OILPAN)
     ASSERT(m_didCallDestroy);
@@ -1412,6 +1432,20 @@ void RenderObject::paint(PaintInfo&, const LayoutPoint&)
 {
 }
 
+void RenderObject::setHadPaintInvalidation()
+{
+    if (firstPaintInvalidationTrackingEnabled())
+        renderObjectNeverHadPaintInvalidationSet().remove(this);
+}
+
+bool RenderObject::hadPaintInvalidation() const
+{
+    if (firstPaintInvalidationTrackingEnabled())
+        return true;
+
+    return !renderObjectNeverHadPaintInvalidationSet().contains(this);
+}
+
 const RenderLayerModelObject* RenderObject::containerForPaintInvalidation() const
 {
     if (!isRooted())