Get more data to diagnose a crash.

content/browser/tab_contents/tab_contents.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/tab_contents/tab_contents.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 1045 matching lines @@
   // Double check that here.
   int enabled_bindings = dest_render_view_host->GetEnabledBindings();
   WebUIControllerFactory* factory =
       content::GetContentClient()->browser()->GetWebUIControllerFactory();
   bool is_allowed_in_web_ui_renderer =
       factory &&
       factory->IsURLAcceptableForWebUI(GetBrowserContext(), entry.GetURL());
 #if defined(OS_CHROMEOS)
   is_allowed_in_web_ui_renderer |= entry.GetURL().SchemeIs(chrome::kDataScheme);
 #endif
-  CHECK(!(enabled_bindings & content::BINDINGS_POLICY_WEB_UI) ||
-        is_allowed_in_web_ui_renderer);
+  if ((enabled_bindings & content::BINDINGS_POLICY_WEB_UI) &&
+      !is_allowed_in_web_ui_renderer) {
+    // Log the URL to help us diagnose this.

[jam, 2012/03/23 22:12:38]

nit: please add the bug number here so we can track down when we need to remove
the code (annotating tab_contents.cc is very slow!)

[Charlie Reis, 2012/03/23 22:23:13]

Done.

+    content::GetContentClient()->SetActiveURL(entry.GetURL());
+    CHECK(0);
+  }
 
   // Tell DevTools agent that it is attached prior to the navigation.
   DevToolsManagerImpl::GetInstance()->OnNavigatingToPendingEntry(
       GetRenderViewHost(),
       dest_render_view_host,
       entry.GetURL());
 
   // Used for page load time metrics.
   current_load_start_ = base::TimeTicks::Now();
 
@@ skipping 1511 matching lines @@
 void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = GetView()->CreateViewForWidget(rvh);
   // Can be NULL during tests.
   if (rwh_view)
     rwh_view->SetSize(GetView()->GetContainerSize());
 }
 
 RenderViewHostImpl* TabContents::GetRenderViewHostImpl() {
   return static_cast<RenderViewHostImpl*>(GetRenderViewHost());
 }