Revert of Per WebViewScheduler virtual time

third_party/WebKit/Source/web/WebViewImpl.h

Index: third_party/WebKit/Source/web/WebViewImpl.h
diff --git a/third_party/WebKit/Source/web/WebViewImpl.h b/third_party/WebKit/Source/web/WebViewImpl.h
index 9858b0af43f68a4a574ad408f100b7ed12a97359..7d95760bdfec087432c6822112418be173a409c0 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.h
+++ b/third_party/WebKit/Source/web/WebViewImpl.h
@@ -446,7 +446,6 @@
     void detachCompositorAnimationTimeline(CompositorAnimationTimeline*);
     CompositorAnimationTimeline* linkHighlightsTimeline() const { return m_linkHighlightsTimeline.get(); }
 
-    WebViewScheduler* scheduler() const override;
     void setVisibilityState(WebPageVisibilityState, bool) override;
 
     bool hasOpenedPopup() const { return m_pagePopup; }
@@ -525,6 +524,8 @@
     PageScaleConstraintsSet& pageScaleConstraintsSet() const;
 
     FloatSize elasticOverscroll() const { return m_elasticOverscroll; }
+
+    WebViewScheduler* scheduler() const { return m_scheduler.get(); }
 
     // Attaches the PaintArtifactCompositor's tree to this WebView's layer tree
     // view.