Add logging in WebViewImpl::scheduleAnimation

We need to find the missing setNeedsAnimate.

BUG=393331

Review URL: https://codereview.chromium.org/556723004

git-svn-id: svn://svn.chromium.org/blink/trunk@181770 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/WebViewImpl.cpp

@@ -4013,6 +4013,7 @@ GraphicsLayer* WebViewImpl::rootGraphicsLayer()
 
 void WebViewImpl::scheduleAnimation()
 {
+    WTF_LOG(ScriptedAnimationController, "WebViewImpl::scheduleAnimation: accelerated = %d", isAcceleratedCompositingActive() ? 1 : 0);
     if (isAcceleratedCompositingActive()) {
         ASSERT(m_layerTreeView);
         m_layerTreeView->setNeedsAnimate();