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

content/test/content_browser_test_test.cc

 // Copyright (c) 2011 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 "content/public/test/content_browser_test.h"
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/public/test/test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 IN_PROC_BROWSER_TEST_F(ContentBrowserTest, MANUAL_ShouldntRun) {
   // Ensures that tests with MANUAL_ prefix don't run automatically.
   ASSERT_TRUE(false);
 }
 
 class ContentBrowserTestSanityTest : public ContentBrowserTest {
  public:
-  void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     const testing::TestInfo* const test_info =
         testing::UnitTest::GetInstance()->current_test_info();
     if (std::string(test_info->name()) == "SingleProcess")
       command_line->AppendSwitch(switches::kSingleProcess);
   }
 
   void Test() {
     GURL url = GetTestUrl(".", "simple_page.html");
 
     base::string16 expected_title(base::ASCIIToUTF16("OK"));
@@ skipping 22 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(ContentBrowserTestSanityTest, NonNestableTask) {
   bool non_nested_task_ran = false;
   base::MessageLoop::current()->PostNonNestableTask(
       FROM_HERE, base::Bind(&CallbackChecker, &non_nested_task_ran));
   content::RunAllPendingInMessageLoop();
   ASSERT_TRUE(non_nested_task_ran);
 }
 
 }  // namespace content