base: Remove the string logging from CHECK().

content/public/test/test_fileapi_operation_waiter.cc

 // Copyright 2016 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/public/test/test_fileapi_operation_waiter.h"
 
 #include "base/bind_helpers.h"
 #include "base/lazy_instance.h"
 #include "base/observer_list.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 30 matching lines @@
       context_ = context;
       base::Closure task = base::Bind(
           &storage::SandboxFileSystemBackendDelegate::AddFileUpdateObserver,
           base::Unretained(context_->sandbox_delegate()),
           storage::kFileSystemTypeTemporary, base::Unretained(this),
           base::RetainedRef(
               BrowserThread::GetTaskRunnerForThread(BrowserThread::UI)));
       BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, task);
     }
 
-    CHECK_EQ(context, context_) << "Multiprofile is not implemented";
+    // Multiprofile is not implemented
+    CHECK_EQ(context, context_);
 
     observers_.AddObserver(observer);
   }
 
   void RemoveObserver(FileUpdateObserver* observer) {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     observers_.RemoveObserver(observer);
   }
 
   // FileUpdateObserver overrides:
@@ skipping 42 matching lines @@
 }
 
 void TestFileapiOperationWaiter::OnUpdate(const FileSystemURL& url,
                                           int64_t delta) {}
 
 void TestFileapiOperationWaiter::OnEndUpdate(const FileSystemURL& url) {
   run_loop_.Quit();
 }
 
 }  // namespace content