Makes the component installers return a Result instead of a bool.

chrome/browser/component_updater/supervised_user_whitelist_installer_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 <stddef.h>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 333 matching lines @@
   installer_->RegisterWhitelist(kOtherClientId, kCrxId, kName);
 
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
   base::FilePath unpacked_path = temp_dir.GetPath();
   ASSERT_NO_FATAL_FAILURE(PrepareWhitelistDirectory(unpacked_path));
 
   const CrxComponent* component =
       component_update_service_.registered_component();
   ASSERT_TRUE(component);
-  EXPECT_TRUE(component->installer->Install(manifest_, unpacked_path));
+  const auto result = component->installer->Install(manifest_, unpacked_path);
+  EXPECT_EQ(0, result.error);
+  EXPECT_EQ(0, result.extended_error);
 
   observer.Wait();
   EXPECT_EQ(whitelist_path_.value(), observer.whitelist_path().value());
   EXPECT_EQ(large_icon_path_.value(), observer.large_icon_path().value());
 
   std::string whitelist_contents;
   ASSERT_TRUE(base::ReadFileToString(whitelist_path_, &whitelist_contents));
 
   // The actual file contents don't have to be equal, but the parsed values
   // should be.
@@ skipping 58 matching lines @@
     // but it exercises a different code path.
     profile_attributes_storage()->RemoveProfile(GetProfilePath(kOtherClientId));
     run_loop.RunUntilIdle();
   }
   EXPECT_FALSE(component_update_service_.registered_component());
   EXPECT_FALSE(base::DirectoryExists(whitelist_directory_));
   EXPECT_FALSE(base::PathExists(whitelist_path_));
 }
 
 }  // namespace component_updater