base: Remove the string logging from CHECK().

extensions/renderer/logging_native_handler.cc

 // Copyright 2014 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 "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "extensions/renderer/logging_native_handler.h"
 #include "extensions/renderer/script_context.h"
 
 namespace extensions {
@@ skipping 16 matching lines @@
       base::Bind(&LoggingNativeHandler::Warning, base::Unretained(this)));
 }
 
 LoggingNativeHandler::~LoggingNativeHandler() {}
 
 void LoggingNativeHandler::Check(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   bool check_value;
   std::string error_message;
   ParseArgs(args, &check_value, &error_message);
-  CHECK(check_value) << error_message;
+  CHECK(check_value);
 }
 
 void LoggingNativeHandler::Dcheck(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   bool check_value;
   std::string error_message;
   ParseArgs(args, &check_value, &error_message);
   DCHECK(check_value) << error_message;
 }
 
@@ skipping 22 matching lines @@
   *check_value = args[0]->BooleanValue();
   if (args.Length() == 2) {
     *error_message = "Error: " + std::string(*v8::String::Utf8Value(args[1]));
   }
 
   if (!check_value)
     *error_message += "\n" + context()->GetStackTraceAsString();
 }
 
 }  // namespace extensions