Add UMA datapoints for cases where FilterURL fails.

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 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/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1701 matching lines @@
   // of the renderer's messages.  Check for this in debug builds, but don't
   // let it crash a release browser.
   DCHECK(GURL(kSwappedOutURL) != *url);
 
   if (!url->is_valid()) {
     // Have to use about:blank for the denied case, instead of an empty GURL.
     // This is because the browser treats navigation to an empty GURL as a
     // navigation to the home page. This is often a privileged page
     // (chrome://newtab/) which is exactly what we don't want.
     *url = GURL(chrome::kAboutBlankURL);
+    RecordAction(UserMetricsAction("FilterURLTermiate_Invalid"));
     return;
   }
 
   if (url->SchemeIs(chrome::kAboutScheme)) {
     // The renderer treats all URLs in the about: scheme as being about:blank.
     // Canonicalize about: URLs to about:blank.
     *url = GURL(chrome::kAboutBlankURL);
+    RecordAction(UserMetricsAction("FilterURLTermiate_About"));
   }
 
   // Do not allow browser plugin guests to navigate to non-web URLs, since they
   // cannot swap processes or grant bindings.
   bool non_web_url_in_guest = process->IsGuest() &&
       !(url->is_valid() && policy->IsWebSafeScheme(url->scheme()));
 
   if (non_web_url_in_guest || !policy->CanRequestURL(process->GetID(), *url)) {
     // If this renderer is not permitted to request this URL, we invalidate the
     // URL.  This prevents us from storing the blocked URL and becoming confused
     // later.
     VLOG(1) << "Blocked URL " << url->spec();
     *url = GURL(chrome::kAboutBlankURL);
+    RecordAction(UserMetricsAction("FilterURLTermiate_Blocked"));
   }
 }
 
 void RenderViewHostImpl::SetAltErrorPageURL(const GURL& url) {
   Send(new ViewMsg_SetAltErrorPageURL(GetRoutingID(), url));
 }
 
 void RenderViewHostImpl::ExitFullscreen() {
   RejectMouseLockOrUnlockIfNecessary();
   // We need to notify the contents that its fullscreen state has changed. This
@@ skipping 311 matching lines @@
           GetRoutingID(), snapshot_id, snapshot_size, png));
       return;
     }
   }
 
   Send(new ViewMsg_WindowSnapshotCompleted(
       GetRoutingID(), snapshot_id, gfx::Size(), png));
 }
 
 }  // namespace content