Make callers of CommandLine use it via the base:: namespace.

chrome/browser/extensions/api/permissions/permissions_apitest.cc

 // Copyright (c) 2012 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/api/permissions/permissions_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_management_test_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "components/policy/core/browser/browser_policy_connector.h"
 #include "components/policy/core/common/mock_configuration_policy_provider.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/common/permissions/permission_set.h"
 #include "extensions/common/switches.h"
 #include "net/dns/mock_host_resolver.h"
 
 namespace extensions {
 
 namespace {
 
 static void AddPattern(URLPatternSet* extent, const std::string& pattern) {
   int schemes = URLPattern::SCHEME_ALL;
   extent->AddPattern(URLPattern(schemes, pattern));
 }
 
 }  // namespace
 
 class ExperimentalApiTest : public ExtensionApiTest {
  public:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnableExperimentalExtensionApis);
   }
 };
 
 class ExtensionApiTestWithManagementPolicy : public ExtensionApiTest {
  public:
   void SetUpInProcessBrowserTestFixture() override {
     ExtensionApiTest::SetUpInProcessBrowserTestFixture();
     EXPECT_CALL(policy_provider_, IsInitializationComplete(testing::_))
@@ skipping 148 matching lines @@
 
 // Test requesting, querying, and removing host permissions for host
 // permissions that are a subset of the optional permissions.
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, HostSubsets) {
   PermissionsRequestFunction::SetAutoConfirmForTests(true);
   PermissionsRequestFunction::SetIgnoreUserGestureForTests(true);
   EXPECT_TRUE(RunExtensionTest("permissions/host_subsets")) << message_;
 }
 
 }  // namespace extensions