Phase III Step 2: Call imageNotifyFinished() and image load event after SVG loading completes

third_party/WebKit/Source/core/svg/graphics/SVGImage.h

Index: third_party/WebKit/Source/core/svg/graphics/SVGImage.h
diff --git a/third_party/WebKit/Source/core/svg/graphics/SVGImage.h b/third_party/WebKit/Source/core/svg/graphics/SVGImage.h
index eeb8487e30777736dbe4afb264511ce6917c0328..842af4c70cd1332941109393d898cc78f8a929ca 100644
--- a/third_party/WebKit/Source/core/svg/graphics/SVGImage.h
+++ b/third_party/WebKit/Source/core/svg/graphics/SVGImage.h
@@ -33,6 +33,7 @@
 #include "platform/weborigin/KURL.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "wtf/Allocator.h"
+#include "wtf/WeakPtr.h"
 
 namespace blink {
 
@@ -156,6 +157,12 @@ class CORE_EXPORT SVGImage final : public Image {
   void scheduleTimelineRewind();
   void flushPendingTimelineRewind();
 
+  WTF::WeakPtr<SVGImage> asWeakPtr() {
+    return m_weakPtrFactory.createWeakPtr();
+  }
+
+  class SVGImageLocalFrameClient;
+
   Persistent<SVGImageChromeClient> m_chromeClient;
   Persistent<Page> m_page;
   std::unique_ptr<PaintController> m_paintController;
@@ -167,6 +174,18 @@ class CORE_EXPORT SVGImage final : public Image {
   // the "concrete object size". For more, see: SVGImageForContainer.h
   IntSize m_intrinsicSize;
   bool m_hasPendingTimelineRewind;
+
+  enum AsyncLoadCompletionStatus {

[fs, 2017/03/15 14:22:17]

Why Async...? That's just one possible outcome.

[hiroshige, 2017/05/04 22:50:50]

Done. Renamed to LoadState (and renamed some of enum value names).

+    DataChangedNotStarted,
+    InDataChanged,
+    AfterDataChanged,
+    LoadCompletedWithinDataChanged,
+    LoadCompletedAsynchronously,
+  };
+
+  AsyncLoadCompletionStatus m_loadStatus = DataChangedNotStarted;
+
+  WTF::WeakPtrFactory<SVGImage> m_weakPtrFactory;
 };
 
 DEFINE_IMAGE_TYPE_CASTS(SVGImage);