Drag-and-drop: Move startDrag out of WebView/RenderView.

content/browser/renderer_host/render_widget_host_delegate.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/browser/renderer_host/render_widget_host_delegate.h"
+
 #include "build/build_config.h"
-#include "content/browser/renderer_host/render_widget_host_delegate.h"
+#include "content/browser/renderer_host/render_view_host_delegate_view.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace content {
 
 void RenderWidgetHostDelegate::GetScreenInfo(ScreenInfo*) {}
 
 bool RenderWidgetHostDelegate::PreHandleKeyboardEvent(
     const NativeWebKeyboardEvent& event,
     bool* is_keyboard_shortcut) {
   return false;
@@ skipping 48 matching lines @@
 }
 
 TextInputManager* RenderWidgetHostDelegate::GetTextInputManager() {
   return nullptr;
 }
 
 bool RenderWidgetHostDelegate::IsHidden() {
   return false;
 }
 
+RenderViewHostDelegateView* RenderWidgetHostDelegate::GetDelegateView() {
+  return nullptr;
+}
+
 }  // namespace content