base: Remove the string logging from CHECK().

extensions/renderer/worker_script_context_set.cc

 // Copyright 2015 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/renderer/worker_script_context_set.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "extensions/renderer/script_context.h"
@@ skipping 26 matching lines @@
   DCHECK_GT(content::WorkerThread::GetCurrentId(), 0)
       << "Must be called on a worker thread";
   ContextVector* contexts = contexts_tls_.Get();
   if (!contexts) {
     // First context added for this thread. Create a new set, then wait for
     // this thread's shutdown.
     contexts = new ContextVector();
     contexts_tls_.Set(contexts);
     content::WorkerThread::AddObserver(this);
   }
-  CHECK(FindContext(contexts, context->v8_context()) == contexts->end())
-      << "Worker for " << context->url() << " is already in this set";
+  // Worker for |context->url()| is already in this set
+  CHECK(FindContext(contexts, context->v8_context()) == contexts->end());
   contexts->push_back(std::move(context));
 }
 
 void WorkerScriptContextSet::Remove(v8::Local<v8::Context> v8_context,
                                     const GURL& url) {
   DCHECK_GT(content::WorkerThread::GetCurrentId(), 0)
       << "Must be called on a worker thread";
   ContextVector* contexts = contexts_tls_.Get();
   if (!contexts) {
     // Thread has already been torn down, and |v8_context| removed. I'm not
     // sure this can actually happen (depends on in what order blink fires
     // events), but SW lifetime has bitten us before, so be cautious.
     return;
   }
   auto context_it = FindContext(contexts, v8_context);
-  CHECK(context_it != contexts->end()) << "Worker for " << url
-                                       << " is not in this set";
+  // Worker for |url| is not in this set
+  CHECK(context_it != contexts->end());
   ScriptContext* context = *context_it;
   DCHECK_EQ(url, context->url());
   context->Invalidate();
   contexts->erase(context_it);
 }
 
 void WorkerScriptContextSet::WillStopCurrentWorkerThread() {
   content::WorkerThread::RemoveObserver(this);
   ContextVector* contexts = contexts_tls_.Get();
   DCHECK(contexts);
   for (ScriptContext* context : *contexts)
     context->Invalidate();
   contexts_tls_.Set(nullptr);
   delete contexts;
 }
 
 }  // namespace extensions