Make USE_EXTERNAL_POPUP_MENU local to content.

content/renderer/render_widget.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 "content/renderer/render_widget.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 559 matching lines @@
   screen_info_ = emulator->original_screen_info();
   device_scale_factor_ = screen_info_.device_scale_factor;
 }
 
 gfx::Rect RenderWidget::AdjustValidationMessageAnchor(const gfx::Rect& anchor) {
   if (screen_metrics_emulator_)
     return screen_metrics_emulator_->AdjustValidationMessageAnchor(anchor);
   return anchor;
 }
 
-#if defined(USE_EXTERNAL_POPUP_MENU)
+#if BUILDFLAG(USE_EXTERNAL_POPUP_MENU)
 void RenderWidget::SetExternalPopupOriginAdjustmentsForEmulation(
     ExternalPopupMenu* popup,
     RenderWidgetScreenMetricsEmulator* emulator) {
   popup->SetOriginScaleAndOffsetForEmulation(
       emulator->scale(), emulator->offset());
 }
 #endif
 
 void RenderWidget::OnShowHostContextMenu(ContextMenuParams* params) {
   if (screen_metrics_emulator_)
@@ skipping 1733 matching lines @@
     // browser side (https://crbug.com/669219).
     // If there is no WebFrameWidget, then there will be no
     // InputMethodControllers for a WebLocalFrame.
     return nullptr;
   }
   return static_cast<blink::WebFrameWidget*>(GetWebWidget())
       ->getActiveWebInputMethodController();
 }
 
 }  // namespace content