FirstMeaningfulPaint UMA

third_party/WebKit/Source/core/loader/FrameFetchContext.cpp

Index: third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
diff --git a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
index f873f582a862959088feae2731098e1add6b3b7e..2f33906db9e24110bf686aba183006aa9ce85b9f 100644
--- a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
@@ -58,6 +58,7 @@
 #include "core/loader/appcache/ApplicationCacheHost.h"
 #include "core/page/NetworkStateNotifier.h"
 #include "core/page/Page.h"
+#include "core/paint/FirstMeaningfulPaintDetector.h"
 #include "core/svg/graphics/SVGImageChromeClient.h"
 #include "core/timing/DOMWindowPerformance.h"
 #include "core/timing/Performance.h"
@@ -414,6 +415,8 @@ void FrameFetchContext::didLoadResource(Resource* resource)
 {
     if (resource->isLoadEventBlockingResourceType())
         frame()->loader().checkCompleted();
+    if (m_document)
+        FirstMeaningfulPaintDetector::from(*m_document).checkNetworkStable();

[kouhei (in TOK), 2016/07/28 03:45:04]

I think we can add a hook in FrameLoader::checkCompleted() for this purpose,
instead of doing active loader checks on each Resource load.

[Kunihiko Sakamoto, 2016/08/01 08:52:07]

I wanted to take into account all loading activities, including
non-load-event-blocking ones that don't trigger checkCompleted().

 }
 
 void FrameFetchContext::addResourceTiming(const ResourceTimingInfo& info)