base: Remove the string logging from CHECK().

content/browser/renderer_host/render_widget_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_widget_host_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 283 matching lines @@
   if (gfx::ICCProfile::CachedProfilesNeedUpdate()) {
     BrowserThread::PostBlockingPoolTask(
         FROM_HERE,
         base::Bind(&gfx::ICCProfile::UpdateCachedProfilesOnBackgroundThread));
   }
 #endif
 
   std::pair<RoutingIDWidgetMap::iterator, bool> result =
       g_routing_id_widget_map.Get().insert(std::make_pair(
           RenderWidgetHostID(process->GetID(), routing_id_), this));
-  CHECK(result.second) << "Inserting a duplicate item!";
+  // Inserting a duplicate item!
+  CHECK(result.second);
   process_->AddRoute(routing_id_, this);
 
   // If we're initially visible, tell the process host that we're alive.
   // Otherwise we'll notify the process host when we are first shown.
   if (!hidden)
     process_->WidgetRestored();
 
   latency_tracker_.Initialize(routing_id_, GetProcess()->GetID());
 
   input_router_.reset(new InputRouterImpl(
@@ skipping 2188 matching lines @@
     // Note: We are using the origin URL provided by the sender here. It may be
     // different from the receiver's.
     file_system_file.url =
         GURL(storage::GetIsolatedFileSystemRootURIString(
                  file_system_url.origin(), filesystem_id, std::string())
                  .append(register_name));
   }
 }
 
 }  // namespace content