Make the web-animations engine use the passed in blink::WebFrameTime values.

Source/core/svg/graphics/SVGImageChromeClient.cpp

Index: Source/core/svg/graphics/SVGImageChromeClient.cpp
diff --git a/Source/core/svg/graphics/SVGImageChromeClient.cpp b/Source/core/svg/graphics/SVGImageChromeClient.cpp
index c130ea80f099d898a966b8f721457c90745bc919..4eb94118137e23c16fab3555709acb30ff18822f 100644
--- a/Source/core/svg/graphics/SVGImageChromeClient.cpp
+++ b/Source/core/svg/graphics/SVGImageChromeClient.cpp
@@ -86,7 +86,9 @@ void SVGImageChromeClient::animationTimerFired(Timer<SVGImageChromeClient>*)
     // serviceScriptedAnimations runs requestAnimationFrame callbacks, but SVG
     // images can't have any so we assert there's no script.
     ScriptForbiddenScope forbidScript;
-    m_image->frameView()->page()->animator().serviceScriptedAnimations(monotonicallyIncreasingTime());
+    double now = monotonicallyIncreasingTime();
+    m_image->frameView()->page()->animator().serviceScriptedAnimations(
+        blink::WebFrameTime(blink::WebFrameTime::Undefined, blink::WebFrameTime::Undefined, now, now + animationFrameDelay));
     m_image->frameView()->updateLayoutAndStyleForPainting();
 }