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

chrome/browser/chromeos/events/event_rewriter.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/chromeos/events/event_rewriter.h"
 
 #include <vector>
 
 #include "ash/sticky_keys/sticky_keys_controller.h"
 #include "ash/wm/window_state.h"
@@ skipping 85 matching lines @@
     return NULL;  // The |pref_name| hasn't been registered. On login screen?
   const int value = pref_service.GetInteger(pref_name.c_str());
   for (size_t i = 0; i < arraysize(kModifierRemappings); ++i) {
     if (value == kModifierRemappings[i].remap_to)
       return &kModifierRemappings[i];
   }
   return NULL;
 }
 
 bool HasDiamondKey() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
       chromeos::switches::kHasChromeOSDiamondKey);
 }
 
 bool IsISOLevel5ShiftUsedByCurrentInputMethod() {
   // Since both German Neo2 XKB layout and Caps Lock depend on Mod3Mask,
   // it's not possible to make both features work. For now, we don't remap
   // Mod3Mask when Neo2 is in use.
   // TODO(yusukes): Remove the restriction.
   input_method::InputMethodManager* manager =
       input_method::InputMethodManager::Get();
@@ skipping 879 matching lines @@
   // TODO(spang): Figure out where we can get keyboard vendor/product id from in
   // Ozone/Freon version.
   return KeyboardDeviceAddedInternal(device_id,
                                      "keyboard",
                                      kUnknownVendorId,
                                      kUnknownProductId);
 #endif
 }
 
 }  // namespace chromeos