Use the scheduling mechanism provided by the platform

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index d545e9f50f213cd7e0a3be3d5786e3d189963ab1..c7ee944f3e8f31148bf5aab3c0499dcb3816f77e 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1842,8 +1842,6 @@ void WebViewImpl::beginFrame(const WebBeginFrameArgs& frameTime)
     if (!validFrameTime.lastFrameTimeMonotonic)
         validFrameTime.lastFrameTimeMonotonic = monotonicallyIncreasingTime();
 
-    Scheduler::shared()->willBeginFrame(validFrameTime.lastFrameTimeMonotonic + validFrameTime.interval);
-
     // Create synthetic wheel events as necessary for fling.
     if (m_gestureAnimation) {
         if (m_gestureAnimation->animate(validFrameTime.lastFrameTimeMonotonic))
@@ -1875,7 +1873,7 @@ void WebViewImpl::beginFrame(const WebBeginFrameArgs& frameTime)
 
 void WebViewImpl::didCommitFrameToCompositor()
 {
-    Scheduler::shared()->didCommitFrameToCompositor();
+    // TODO: Remove this function.
 }
 
 void WebViewImpl::layout()