base: Remove the string logging from CHECK().

extensions/common/manifest_handler.cc

 // Copyright (c) 2013 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 "extensions/common/manifest_handler.h"
 
 #include <stddef.h>
 
 #include <map>
 
@@ skipping 205 matching lines @@
              unsorted_handlers.begin();
          iter != unsorted_handlers.end(); ++iter) {
       ManifestHandler* handler = *iter;
       const std::vector<std::string>& prerequisites =
           handler->PrerequisiteKeys();
       int unsatisfied = prerequisites.size();
       for (size_t i = 0; i < prerequisites.size(); ++i) {
         ManifestHandlerMap::const_iterator prereq_iter =
             handlers_.find(prerequisites[i]);
         // If the prerequisite does not exist, crash.
-        CHECK(prereq_iter != handlers_.end())
-            << "Extension manifest handler depends on unrecognized key "
-            << prerequisites[i];
+        // Extension manifest handler depends on unrecognized key
+        // |prerequisites[i]|.
+        CHECK(prereq_iter != handlers_.end());
         // Prerequisite is in our map.
         if (base::ContainsKey(priority_map_, prereq_iter->second.get()))
           unsatisfied--;
       }
       if (unsatisfied == 0) {
         priority_map_[handler] = priority;
         priority++;
       } else {
         // Put in the list for next time.
         next_unsorted_handlers.insert(handler);
       }
     }
     if (next_unsorted_handlers.size() == unsorted_handlers.size())
       break;
     unsorted_handlers.swap(next_unsorted_handlers);
   }
 
   // If there are any leftover unsorted handlers, they must have had
   // circular dependencies.
-  CHECK_EQ(unsorted_handlers.size(), std::set<ManifestHandler*>::size_type(0))
-      << "Extension manifest handlers have circular dependencies!";
+  // Extension manifest handlers have circular dependencies!
+  CHECK_EQ(unsorted_handlers.size(), std::set<ManifestHandler*>::size_type(0));
 }
 
 }  // namespace extensions