Improve comments on WebContentsObserver RenderFrame* methods and rename.

content/public/test/web_contents_observer_sanity_checker.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/test/web_contents_observer_sanity_checker.h"
 
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/site_instance.h"
@@ skipping 69 matching lines @@
 
 void WebContentsObserverSanityChecker::RenderFrameHostChanged(
     RenderFrameHost* old_host,
     RenderFrameHost* new_host) {
   CHECK(new_host);
   if (old_host)
     AssertFrameExists(old_host);
   AssertFrameExists(new_host);
 }
 
+void WebContentsObserverSanityChecker::FrameDeleted(
+    RenderFrameHost* render_frame_host) {
+  AssertFrameExists(render_frame_host);
+}
+
 void WebContentsObserverSanityChecker::DidStartProvisionalLoadForFrame(
     RenderFrameHost* render_frame_host,
     const GURL& validated_url,
     bool is_error_page,
     bool is_iframe_srcdoc) {
   AssertFrameExists(render_frame_host);
 }
 
 void WebContentsObserverSanityChecker::DidCommitProvisionalLoadForFrame(
     RenderFrameHost* render_frame_host,
@@ skipping 59 matching lines @@
 void WebContentsObserverSanityChecker::DidOpenRequestedURL(
     WebContents* new_contents,
     RenderFrameHost* source_render_frame_host,
     const GURL& url,
     const Referrer& referrer,
     WindowOpenDisposition disposition,
     ui::PageTransition transition) {
   AssertFrameExists(source_render_frame_host);
 }
 
-void WebContentsObserverSanityChecker::FrameDetached(
-    RenderFrameHost* render_frame_host) {
-  AssertFrameExists(render_frame_host);
-}
-
 bool WebContentsObserverSanityChecker::OnMessageReceived(
     const IPC::Message& message,
     RenderFrameHost* render_frame_host) {
 #if !defined(OS_MACOSX)
 // TODO(avi): Disabled because of http://crbug.com/445054
   AssertFrameExists(render_frame_host);
 #endif
   return false;
 }
 
@@ skipping 39 matching lines @@
 
 std::string WebContentsObserverSanityChecker::Format(
     RenderFrameHost* render_frame_host) {
   return base::StringPrintf(
       "(%d, %d -> %s )", render_frame_host->GetProcess()->GetID(),
       render_frame_host->GetRoutingID(),
       render_frame_host->GetSiteInstance()->GetSiteURL().spec().c_str());
 }
 
 }  // namespace content