Fix BundleData::GetBundleRootDirOutput() for non-default toolchain.

tools/gn/function_rebase_path_unittest.cc

 // Copyright (c) 2013 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 "build/build_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/functions.h"
 #include "tools/gn/parse_tree.h"
 #include "tools/gn/test_with_scope.h"
 
@@ skipping 14 matching lines @@
   bool is_string = result.type() == Value::STRING;
   EXPECT_TRUE(is_string);
 
   return result.string_value();
 }
 
 }  // namespace
 
 TEST(RebasePath, Strings) {
   TestWithScope setup;
-  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
   Scope* scope = setup.scope();
   scope->set_source_dir(SourceDir("//tools/gn/"));
 
   // Build-file relative paths.
   EXPECT_EQ("../../tools/gn", RebaseOne(scope, ".", "//out/Debug", "."));
   EXPECT_EQ("../../tools/gn/", RebaseOne(scope, "./", "//out/Debug", "."));
   EXPECT_EQ("../../tools/gn/foo", RebaseOne(scope, "foo", "//out/Debug", "."));
   EXPECT_EQ("../..", RebaseOne(scope, "../..", "//out/Debug", "."));
   EXPECT_EQ("../../", RebaseOne(scope, "../../", "//out/Debug", "."));
 
@@ skipping 98 matching lines @@
   EXPECT_EQ("../../../hdd/src/foo",
             RebaseOne(scope, "foo", "/ssd/out/Debug", "//"));
   EXPECT_EQ("../../../hdd/src/foo/",
             RebaseOne(scope, "foo/", "/ssd/out/Debug", "//"));
 #endif
 }
 
 // Test list input.
 TEST(RebasePath, List) {
   TestWithScope setup;
-  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
   setup.scope()->set_source_dir(SourceDir("//tools/gn/"));
 
   std::vector<Value> args;
   args.push_back(Value(nullptr, Value::LIST));
   args[0].list_value().push_back(Value(nullptr, "foo.txt"));
   args[0].list_value().push_back(Value(nullptr, "bar.txt"));
   args.push_back(Value(nullptr, "//out/Debug/"));
   args.push_back(Value(nullptr, "."));
 
   Err err;
   FunctionCallNode function;
   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
   EXPECT_FALSE(err.has_error());
 
   ASSERT_EQ(Value::LIST, ret.type());
   ASSERT_EQ(2u, ret.list_value().size());
 
   EXPECT_EQ("../../tools/gn/foo.txt", ret.list_value()[0].string_value());
   EXPECT_EQ("../../tools/gn/bar.txt", ret.list_value()[1].string_value());
 }
 
 TEST(RebasePath, Errors) {
   TestWithScope setup;
-  setup.build_settings()->SetBuildDir(SourceDir("//out/Debug/"));
 
   // No arg input should issue an error.
   Err err;
   std::vector<Value> args;
   FunctionCallNode function;
   Value ret = functions::RunRebasePath(setup.scope(), &function, args, &err);
   EXPECT_TRUE(err.has_error());
 }