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

chrome/browser/sync/backup_rollback_controller.cc

 // Copyright 2014 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/sync/backup_rollback_controller.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
 #include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
@@ skipping 34 matching lines @@
   sync_prefs_->SetRemainingRollbackTries(0);
   base::MessageLoop::current()->PostTask(FROM_HERE, start_backup_);
   return true;
 }
 
 bool BackupRollbackController::StartRollback() {
   if (!IsBackupEnabled())
     return false;
 
   // Don't roll back if disabled or user is signed in.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kSyncDisableRollback) ||
       !signin_->GetEffectiveUsername().empty()) {
     sync_prefs_->SetRemainingRollbackTries(0);
     return false;
   }
 
   int rollback_tries = sync_prefs_->GetRemainingRollbackTries();
   if (rollback_tries <= 0)
     return false;   // No pending rollback.
 
@@ skipping 13 matching lines @@
   sync_prefs_->SetRemainingRollbackTries(0);
 #endif
 }
 
 // static
 bool BackupRollbackController::IsBackupEnabled() {
 #if defined(ENABLE_PRE_SYNC_BACKUP)
   const std::string group_name =
       base::FieldTrialList::FindFullName(kSyncBackupFinchName);
 
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kSyncDisableBackup) ||
-      group_name == kSyncBackupFinchDisabled)  {
+      group_name == kSyncBackupFinchDisabled) {
     return false;
   }
   return true;
 #else
   return false;
 #endif
 }
 
 }  // namespace browser_sync