Move the user interaction policy for FirstMeaningfulPaint UMA into renderer

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 6cde5a4680945779ea86da6e77b4405b1cd34343..4c1ee3bf821d97030a5a6fa34e48fe86c0ddfa38 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -98,6 +98,7 @@
 #include "core/page/TouchDisambiguation.h"
 #include "core/page/ValidationMessageClientImpl.h"
 #include "core/page/scrolling/TopDocumentRootScrollerController.h"
+#include "core/paint/FirstMeaningfulPaintDetector.h"
 #include "core/paint/LinkHighlightImpl.h"
 #include "core/paint/PaintLayer.h"
 #include "core/timing/DOMWindowPerformance.h"
@@ -2186,6 +2187,12 @@ WebInputEventResult WebViewImpl::HandleInputEvent(
     return WebInputEventResult::kHandledSystem;
   }
 
+  if (input_event.GetType() != WebInputEvent::kMouseMove) {
+    FirstMeaningfulPaintDetector::From(
+        *MainFrameImpl()->GetFrame()->GetDocument())
+        .NotifyInputEvent();
+  }
+
   if (mouse_capture_node_ &&
       WebInputEvent::IsMouseEventType(input_event.GetType())) {
     TRACE_EVENT1("input", "captured mouse event", "type",