Revert of Back PaintRecord with PaintOpBuffer instead of SkPicture

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

Index: third_party/WebKit/Source/platform/graphics/paint/DrawingDisplayItem.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/DrawingDisplayItem.cpp b/third_party/WebKit/Source/platform/graphics/paint/DrawingDisplayItem.cpp
index 7c14717bf9c7e8a97f51c05b3ccd98957ad3dacd..2a17f3daee1e60ec3e749a3829c01a71d9916d23 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/DrawingDisplayItem.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/DrawingDisplayItem.cpp
@@ -10,6 +10,7 @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkData.h"
+#include "third_party/skia/include/core/SkPictureAnalyzer.h"
 
 namespace blink {
 
@@ -29,8 +30,14 @@
   return record_.get();
 }
 
-int DrawingDisplayItem::NumberOfSlowPaths() const {
-  return record_ ? record_->numSlowPaths() : 0;
+void DrawingDisplayItem::AnalyzeForGpuRasterization(
+    SkPictureGpuAnalyzer& analyzer) const {
+  // TODO(enne): Need an SkPictureGpuAnalyzer on PictureRecord.
+  // This is a bit overkill to ToSkPicture a record just to get
+  // numSlowPaths.
+  if (!record_)
+    return;
+  analyzer.analyzePicture(ToSkPicture(record_).get());
 }
 
 #ifndef NDEBUG