Rename RFO::FrameWillClose() to reflect its actual purpose.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 54972feabefcc319e1758e46937b7a1ce1d11736..729a76c259b73f30f08023a72672e89fcf1b7c68 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2944,10 +2944,8 @@ void RenderFrameImpl::frameFocused() {
 void RenderFrameImpl::willCommitProvisionalLoad(blink::WebLocalFrame* frame) {
   DCHECK_EQ(frame_, frame);
 
-  // TODO(dcheng): Rename observer to FrameWillCommitProvisionalLoad.
-  FOR_EACH_OBSERVER(RenderFrameObserver, observers_, FrameWillClose());
-  FOR_EACH_OBSERVER(RenderViewObserver, render_view_->observers(),
-                    FrameWillClose(frame));
+  FOR_EACH_OBSERVER(RenderFrameObserver, observers_,
+                    WillCommitProvisionalLoad());
 }
 
 void RenderFrameImpl::didChangeName(const blink::WebString& name,