base: Remove the string logging from CHECK().

chrome/browser/extensions/extension_garbage_collector_chromeos_unittest.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 "chrome/browser/extensions/extension_garbage_collector_chromeos.h"
 
 #include <string>
 #include <vector>
 
 #include "base/files/file_util.h"
@@ skipping 110 matching lines @@
   scoped_refptr<Extension> CreateExtension(const std::string& id,
                                            const std::string& version,
                                            const base::FilePath& path) {
     base::DictionaryValue manifest;
     manifest.SetString(manifest_keys::kName, "test");
     manifest.SetString(manifest_keys::kVersion, version);
 
     std::string error;
     scoped_refptr<Extension> extension = Extension::Create(
         path, Manifest::INTERNAL, manifest, Extension::NO_FLAGS, id, &error);
-    CHECK(extension.get()) << error;
+    CHECK(extension.get());
     CHECK_EQ(id, extension->id());
 
     return extension;
   }
 
   ExtensionPrefs* GetExtensionPrefs() {
     return ExtensionPrefs::Get(profile_.get());
   }
 
   chromeos::FakeChromeUserManager* GetFakeUserManager() {
@@ skipping 49 matching lines @@
 
   const base::DictionaryValue* shared_extensions = testing_local_state_.Get()->
       GetDictionary(ExtensionAssetsManagerChromeOS::kSharedExtensions);
   ASSERT_TRUE(shared_extensions);
 
   EXPECT_FALSE(shared_extensions->HasKey(kExtensionId1));
   EXPECT_TRUE(shared_extensions->HasKey(kExtensionId2));
 }
 
 }  // namespace extensions