Delete WebPluginScrollbar and friends

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index dcfbd0aa20221c191454e21706336f561e2ad99e..459bfc26064a07d8a893123bf0bd64b976302088 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1741,11 +1741,6 @@ void WebViewImpl::willStartLiveResize()
 {
     if (mainFrameImpl() && mainFrameImpl()->frameView())
         mainFrameImpl()->frameView()->willStartLiveResize();
-
-    LocalFrame* frame = mainFrameImpl()->frame();
-    WebPluginContainerImpl* pluginContainer = WebLocalFrameImpl::pluginContainerFromFrame(frame);
-    if (pluginContainer)
-        pluginContainer->willStartLiveResize();
 }
 
 WebSize WebViewImpl::size()
@@ -1890,11 +1885,6 @@ void WebViewImpl::willEndLiveResize()
 {
     if (mainFrameImpl() && mainFrameImpl()->frameView())
         mainFrameImpl()->frameView()->willEndLiveResize();
-
-    LocalFrame* frame = mainFrameImpl()->frame();
-    WebPluginContainerImpl* pluginContainer = WebLocalFrameImpl::pluginContainerFromFrame(frame);
-    if (pluginContainer)
-        pluginContainer->willEndLiveResize();
 }
 
 void WebViewImpl::didEnterFullScreen()