Move scheduleAnimation calls from WebViewClient to WebWidgetClient.

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 5292560de5fd17dd357600639f7574a6a0799bbf..deeeb5ead2dc278ae8e8ace7f2a6ba7de082d15a 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.h
+++ b/third_party/WebKit/Source/web/WebViewImpl.h
@@ -425,7 +425,6 @@ public:
     GraphicsLayer* rootGraphicsLayer();
     void registerViewportLayersWithCompositor();
     PaintLayerCompositor* compositor() const;
-    void scheduleAnimation();
     CompositorAnimationTimeline* linkHighlightsTimeline() const { return m_linkHighlightsTimeline.get(); }
 
     WebViewScheduler* scheduler() const override;
@@ -539,6 +538,9 @@ private:
     // m_overrideCompositorVisibility for more details.
     void setCompositorVisibility(bool);
 
+    // TODO(lfg): Remove once WebViewFrameWidget is deleted.
+    void scheduleAnimationForWidget();
+
     friend class WebView;  // So WebView::Create can call our constructor
     friend class WebViewFrameWidget;
     friend class WTF::RefCounted<WebViewImpl>;