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

chrome/browser/errorpage_browsertest.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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 279 matching lines @@
   enum HistoryNavigationDirection {
     HISTORY_NAVIGATE_BACK,
     HISTORY_NAVIGATE_FORWARD,
   };
 
   ErrorPageTest() : link_doctor_interceptor_(NULL) {}
   ~ErrorPageTest() override {}
 
   // Navigates the active tab to a mock url created for the file at |file_path|.
   // Needed for StaleCacheStatus and StaleCacheStatusFailedCorrections tests.
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(switches::kEnableOfflineLoadStaleCache);
   }
 
   // Navigates the active tab to a mock url created for the file at |file_path|.
   void NavigateToFileURL(const base::FilePath::StringType& file_path) {
     ui_test_utils::NavigateToURL(
         browser(),
         net::URLRequestMockHTTPJob::GetMockUrl(base::FilePath(file_path)));
   }
 
@@ skipping 556 matching lines @@
   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
                   BrowsingDataHelper::UNPROTECTED_WEB);
   ui_test_utils::NavigateToURL(browser(), test_url);
   EXPECT_TRUE(ProbeStaleCopyValue(false));
   EXPECT_FALSE(IsDisplayingText(browser(), GetLoadStaleButtonLabel()));
   EXPECT_EQ(0, link_doctor_interceptor()->num_requests());
 }
 
 class ErrorPageAutoReloadTest : public InProcessBrowserTest {
  public:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(switches::kEnableOfflineAutoReload);
   }
 
   void InstallInterceptor(const GURL& url, int requests_to_fail) {
     interceptor_ = new FailFirstNRequestsInterceptor(requests_to_fail);
     scoped_ptr<net::URLRequestInterceptor> owned_interceptor(interceptor_);
 
     // Tests don't need to wait for this task to complete before using the
     // filter; any requests that might be affected by it will end up in the IO
     // thread's message loop after this posted task anyway.
@@ skipping 229 matching lines @@
   ui_test_utils::NavigateToURL(
       browser(),
       URLRequestFailedJob::GetMockHttpUrlForHostname(net::ERR_UNSAFE_PORT,
                                                      kHostname));
 
   ToggleHelpBox(browser());
   EXPECT_TRUE(IsDisplayingText(browser(), kHostnameJSUnicode));
 }
 
 }  // namespace