Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

third_party/WebKit/Source/web/WebViewFrameWidget.cpp

 // Copyright 2015 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 "web/WebViewFrameWidget.h"
 
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebViewImpl.h"
 
 namespace blink {
@@ skipping 210 matching lines @@
 }
 
 bool WebViewFrameWidget::isTransparent() const {
   return m_webView->isTransparent();
 }
 
 void WebViewFrameWidget::setBaseBackgroundColor(WebColor color) {
   m_webView->setBaseBackgroundColor(color);
 }
 
-WebLocalFrameImpl* WebViewFrameWidget::localRoot() {
+WebLocalFrameImpl* WebViewFrameWidget::localRoot() const {
   return m_webView->mainFrameImpl();
 }
 
 void WebViewFrameWidget::scheduleAnimation() {
   m_webView->scheduleAnimationForWidget();
 }
 
 CompositorProxyClient* WebViewFrameWidget::createCompositorProxyClient() {
   return m_webView->createCompositorProxyClient();
 }
@@ skipping 14 matching lines @@
 void WebViewFrameWidget::detachCompositorAnimationTimeline(
     CompositorAnimationTimeline* compositorTimeline) {
   m_webView->detachCompositorAnimationTimeline(compositorTimeline);
 }
 
 HitTestResult WebViewFrameWidget::coreHitTestResultAt(const WebPoint& point) {
   return m_webView->coreHitTestResultAt(point);
 }
 
 }  // namespace blink