base: Remove the string logging from CHECK().

extensions/renderer/worker_script_context_set.cc

Index: extensions/renderer/worker_script_context_set.cc
diff --git a/extensions/renderer/worker_script_context_set.cc b/extensions/renderer/worker_script_context_set.cc
index c928351985d4904592b4400ea90a0d301014d4f1..54604fb972bd47ec3a1e1ea4fbbea4f2ce77ae38 100644
--- a/extensions/renderer/worker_script_context_set.cc
+++ b/extensions/renderer/worker_script_context_set.cc
@@ -44,8 +44,8 @@ void WorkerScriptContextSet::Insert(std::unique_ptr<ScriptContext> context) {
     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));
 }
 
@@ -61,8 +61,8 @@ void WorkerScriptContextSet::Remove(v8::Local<v8::Context> v8_context,
     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();