base: Remove the string logging from CHECK().

chrome/browser/ui/tabs/tab_strip_model.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 "chrome/browser/ui/tabs/tab_strip_model.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <string>
@@ skipping 1213 matching lines @@
   // database if applicable.
   if (create_historical_tabs)
     delegate_->CreateHistoricalTab(contents);
 
   // Deleting the WebContents will call back to us via
   // WebContentsData::WebContentsDestroyed and detach it.
   delete contents;
 }
 
 WebContents* TabStripModel::GetWebContentsAtImpl(int index) const {
-  CHECK(ContainsIndex(index)) <<
-      "Failed to find: " << index << " in: " << count() << " entries.";
+  CHECK(ContainsIndex(index));
   return contents_data_[index]->web_contents();
 }
 
 void TabStripModel::NotifyIfTabDeactivated(WebContents* contents) {
   if (contents) {
     for (auto& observer : observers_)
       observer.TabDeactivated(contents);
   }
 }
 
@@ skipping 116 matching lines @@
 
 void TabStripModel::FixOpenersAndGroupsReferencing(int index) {
   WebContents* old_contents = GetWebContentsAtImpl(index);
   for (auto& data : contents_data_) {
     if (data->group() == old_contents)
       data->set_group(contents_data_[index]->group());
     if (data->opener() == old_contents)
       data->set_opener(contents_data_[index]->opener());
   }
 }