Revert of Change extension icon load errors to warnings

chrome/browser/extensions/extension_service_test_with_install.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 40 matching lines @@
 
   const Extension* PackAndInstallCRX(const base::FilePath& dir_path,
                                      const base::FilePath& pem_path,
                                      InstallState install_state,
                                      int creation_flags);
   const Extension* PackAndInstallCRX(const base::FilePath& dir_path,
                                      const base::FilePath& pem_path,
                                      InstallState install_state);
   const Extension* PackAndInstallCRX(const base::FilePath& dir_path,
                                      InstallState install_state);
-  const Extension* PackAndInstallCRXWithLocation(const base::FilePath& dir_path,
-                                                 Manifest::Location location,
-                                                 InstallState install_state);
 
   const Extension* InstallCRX(const base::FilePath& path,
                               InstallState install_state,
                               int creation_flags,
                               const std::string& expected_old_name);
   const Extension* InstallCRX(const base::FilePath& path,
                               InstallState install_state,
                               int creation_flags);
   const Extension* InstallCRX(const base::FilePath& path,
                               InstallState install_state);
@@ skipping 72 matching lines @@
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       registry_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionServiceTestWithInstall);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_TEST_WITH_INSTALL_H_