Remove stale TODO.

content/browser/frame_host/cross_process_frame_connector.cc

Index: content/browser/frame_host/cross_process_frame_connector.cc
diff --git a/content/browser/frame_host/cross_process_frame_connector.cc b/content/browser/frame_host/cross_process_frame_connector.cc
index 6002fcaa6b18e3707e4430c4cdf62f085f4adbc6..5713a1c1bfe94f84b58bfcef7e15d6ab47ae7f62 100644
--- a/content/browser/frame_host/cross_process_frame_connector.cc
+++ b/content/browser/frame_host/cross_process_frame_connector.cc
@@ -230,10 +230,6 @@ void CrossProcessFrameConnector::OnForwardInputEvent(
 
 void CrossProcessFrameConnector::OnFrameRectChanged(
     const gfx::Rect& frame_rect) {
-  // TODO(wjmaclean) When changing the zoom of a WebView child without also
-  // changing the zoom of the embedder (e.g. using WebView.setZoom()), we
-  // shouldn't propagate this change in the frame rect. We need to find a way
-  // to detect when this happens. http://crbug.com/607978
   if (!frame_rect.size().IsEmpty())
     SetRect(frame_rect);
 }