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

chrome/browser/chrome_content_browser_client_unittest.cc

 // Copyright 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 "chrome/browser/chrome_content_browser_client.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 18 matching lines @@
   EXPECT_FALSE(client.ShouldAssignSiteForURL(GURL("chrome-native://test")));
   EXPECT_TRUE(client.ShouldAssignSiteForURL(GURL("http://www.google.com")));
   EXPECT_TRUE(client.ShouldAssignSiteForURL(GURL("https://www.google.com")));
 }
 
 // NOTE: Any updates to the expectations in these tests should also be done in
 // the browser test WebRtcDisableEncryptionFlagBrowserTest.
 class DisableWebRtcEncryptionFlagTest : public testing::Test {
  public:
   DisableWebRtcEncryptionFlagTest()
-      : from_command_line_(CommandLine::NO_PROGRAM),
-        to_command_line_(CommandLine::NO_PROGRAM) {}
+      : from_command_line_(base::CommandLine::NO_PROGRAM),
+        to_command_line_(base::CommandLine::NO_PROGRAM) {}
 
  protected:
   void SetUp() override {
     from_command_line_.AppendSwitch(switches::kDisableWebRtcEncryption);
   }
 
   void MaybeCopyDisableWebRtcEncryptionSwitch(VersionInfo::Channel channel) {
     ChromeContentBrowserClient::MaybeCopyDisableWebRtcEncryptionSwitch(
         &to_command_line_,
         from_command_line_,
         channel);
   }
 
-  CommandLine from_command_line_;
-  CommandLine to_command_line_;
+  base::CommandLine from_command_line_;
+  base::CommandLine to_command_line_;
 
   DISALLOW_COPY_AND_ASSIGN(DisableWebRtcEncryptionFlagTest);
 };
 
 TEST_F(DisableWebRtcEncryptionFlagTest, UnknownChannel) {
   MaybeCopyDisableWebRtcEncryptionSwitch(VersionInfo::CHANNEL_UNKNOWN);
   EXPECT_TRUE(to_command_line_.HasSwitch(switches::kDisableWebRtcEncryption));
 }
 
 TEST_F(DisableWebRtcEncryptionFlagTest, CanaryChannel) {
@@ skipping 64 matching lines @@
 
   NavigationEntry* entry = browser()->tab_strip_model()->
       GetActiveWebContents()->GetController().GetLastCommittedEntry();
   ASSERT_TRUE(entry != NULL);
   EXPECT_EQ(url_rewritten, entry->GetURL());
   EXPECT_EQ(url_original, entry->GetVirtualURL());
 }
 
 }  // namespace content
 #endif  // !defined(OS_IOS) && !defined(OS_ANDROID)