blimp: Update page load status update indicator to use first paint.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 321514a587192ec92ec6c9091cccbb64ce429ac1..678611e573f7695c029785af02986e4094e34319 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2381,6 +2381,12 @@ void WebContentsImpl::SendScreenRects() {
     browser_plugin_embedder_->DidSendScreenRects();
 }
 
+void WebContentsImpl::OnFirstPaintAfterLoad(
+    RenderWidgetHostImpl* render_widget_host) {
+  FOR_EACH_OBSERVER(WebContentsObserver, observers_,
+                    DidFirstPaintAfterLoad(render_widget_host));
+}
+
 BrowserAccessibilityManager*
     WebContentsImpl::GetRootBrowserAccessibilityManager() {
   RenderFrameHostImpl* rfh = GetMainFrame();