[SPv2] Defer decision of raster invalidation after paint for changes z-index, transform, etc.

third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp

Index: third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp b/third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp
index 90a189d7d8050147aa9ba12b317d552bb8813b92..f777224e8f7630d37782166adb5067af7ce5dcd2 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/DisplayItem.cpp
@@ -194,9 +194,6 @@ WTF::String DisplayItem::typeAsDebugString(Type type)
     if (isEndClipType(type))
         return "End" + clipTypeAsDebugString(endClipTypeToClipType(type));
 
-    if (type == kUninitializedType)
-        return "UninitializedType";
-
     PAINT_PHASE_BASED_DEBUG_STRINGS(FloatClip);
     if (isEndFloatClipType(type))
         return "End" + typeAsDebugString(endFloatClipTypeToFloatClipType(type));
@@ -222,6 +219,7 @@ WTF::String DisplayItem::typeAsDebugString(Type type)
         DEBUG_STRING_CASE(EndClipPath);
         DEBUG_STRING_CASE(Subsequence);
         DEBUG_STRING_CASE(EndSubsequence);
+        DEBUG_STRING_CASE(HasBeenMoved);
         DEBUG_STRING_CASE(UninitializedType);
         DEFAULT_CASE;
     }
@@ -238,8 +236,8 @@ WTF::String DisplayItem::asDebugString() const
 
 void DisplayItem::dumpPropertiesAsDebugString(WTF::StringBuilder& stringBuilder) const
 {
-    if (!hasValidClient()) {
-        stringBuilder.append("validClient: false, originalDebugString: ");
+    if (hasBeenMoved()) {
+        stringBuilder.append("movedTo: %zu, originalDebugString: ", movedToIndex());
         // This is the original debug string which is in json format.
         stringBuilder.append(clientDebugString());
         return;